Home · FSC 5331 O-Ring · NSN 5331-00-551-3963
NSN 5331-00-551-3963 — O-Ring
NIIN 00-551-3963 · unit of issue EA · AAC D (stocked, centrally managed (dla)) · source of supply SMS
Buying rhythm
from 4 government buys since 2021
The government has bought this item about every 1.2 years (loose, gaps vary ±80%). Last buy Mar 16, 2026. The gaps are too uneven to put a window on the next one. 1 solicitation is open right now.
How well this works: for loose items, "next buy about one typical gap after the last, give or take 136 days" caught the actual next buy 37% of the time across 34,631 past buys, against 24% for a fixed "one year later" guess. A rhythm, not a schedule: DLA buys when stock and demand say so. Every item due for a buy now.
NSN 5331-00-551-3963 is the national stock number for an o-ring in federal supply class 5331 (O-Ring). It cross-references to 26 manufacturer part numbers from 26 CAGE codes, including Arvinmeritor Inc, Sae International, Honeywell International Inc.; the primary is 10V60-141-253. The unit of issue is EA and the FLIS list price is $1.39.
The U.S. government has bought this item 6 times on record, 4 of them in the last 24 months, most recently on March 16, 2026 at $0.75 each from Eagle Aviation Manufacturing Inc.. The median unit price paid over 36 months is $1.29. 1 solicitation is open right now, the soonest due October 5, 2026 for 8,339 EA. No seller has confirmed stock of it here in the last 60 days; watching the number is free and the first listing triggers an alert.
26
part numbers from 26 CAGEs
1
open solicitation, all agencies
4
government buys in 24 months · median $1.29
0
sellers with confirmed stock
Cross-references
Part numbers filed against this stock number, with the manufacturer (CAGE) and the FLIS reference codes.
| Part number | CAGE | Manufacturer | Reference | Variation |
|---|---|---|---|---|
| 6652127 | 64829 | Arvinmeritor Inc | 3 · Design control (vendor) | 2 · Fully interchangeable |
| MS29513-253 | 0U583 | Sae International | 3 · Design control (vendor) | 2 · Fully interchangeable |
| S8469F176 | 99193 | Honeywell International Inc. | 3 · Design control (vendor) | 2 · Fully interchangeable |
| SAE-AS29513 | 0U583 | Sae International | 3 · Design control (vendor) | 1 · Not fully interchangeable |
| 10V60-141-253 | 73277 | Houghton International Inc. | 5 · Secondary reference | 2 · Fully interchangeable |
| 16068 | 96046 | Crane Pumps & Systems Pft Corp | 5 · Secondary reference | 2 · Fully interchangeable |
| 1793-253 | 91265 | Parker-Hannifin Corporation | 5 · Secondary reference | 2 · Fully interchangeable |
| 2-253 N602-70 | 02697 | Parker-Hannifin Corp | 5 · Secondary reference | 2 · Fully interchangeable |
| 2-253 N602-70 | C0308 | Parker Hannifin Gmbh O-Ring Division | 5 · Secondary reference | 9 · Reference only |
| 2S419-1 | 10912 | Carter Ralph B Co | 5 · Secondary reference | 9 · Reference only |
| 457-60-253 | 77308 | Parco, LLC | 5 · Secondary reference | 2 · Fully interchangeable |
| 513BG253 | 53698 | Somerset Engineering Div Midland-Ross Corp | 5 · Secondary reference | 9 · Reference only |
| 60-P-31-253 | 28486 | West American Rubber Co Extrude Products Div | 5 · Secondary reference | 2 · Fully interchangeable |
| 725-70-253 | 96879 | Trostel Albert Packing Ltd | 5 · Secondary reference | 2 · Fully interchangeable |
| 7866-253 | 25184 | Parker Hannifin Corporation Div O-Ring Division | 5 · Secondary reference | 2 · Fully interchangeable |
| AS29513-253 | 81343 | Society Of Automotive Engineers Inc | 5 · Secondary reference | 9 · Reference only |
| C-69-253 | 01212 | Federal-Mogul Corp Government Sales Dept | 5 · Secondary reference | 2 · Fully interchangeable |
| MILP5315 | 81349 | Military Specifications Promulgated By Military Departments/Agencies Under Authority Of Defense Standardization Manual 4120 3-M | 5 · Secondary reference | 9 · Reference only |
| MS29513-253 | 96906 | Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M | 5 · Secondary reference | 9 · Reference only |
| MS29513-253 | 81343 | Society Of Automotive Engineers Inc | 5 · Secondary reference | 9 · Reference only |
| N0602 2-253 | 02697 | Parker-Hannifin Corp | 5 · Secondary reference | 2 · Fully interchangeable |
| PRP568-253-457-60 | 77308 | Parco, LLC | 5 · Secondary reference | 2 · Fully interchangeable |
| PX1775-253 | 70106 | Acushnet Rubber Company, Inc. | 5 · Secondary reference | 2 · Fully interchangeable |
| RT253-65-253 | 77969 | Rubbercraft Corporation Of California, Ltd. | 5 · Secondary reference | 9 · Reference only |
| S8469F176 | 72599 | Alliedsignal Inc Dba Allied-Signal Aerospace Co | 5 · Secondary reference | 9 · Reference only |
| SR-822A-60-253 | 95272 | Stillman Seal Corporation | 5 · Secondary reference | 2 · Fully interchangeable |
| 5331PL0962117 | 9009H | Jednolity Indeks Materialowy - Uniform Material Index | 6 | 9 · Reference only |
| 253-C-69 | 80266 | Ap Parts Co Industrial Sales Div | C | 1 · Not fully interchangeable |
| 253-C-69 | 76680 | Federal-Mogul Corp Chassis Products Div | C | 1 · Not fully interchangeable |
| A-253SR8019-65 | 95272 | Stillman Seal Corporation | C | 1 · Not fully interchangeable |
| GS570EM253 | 26512 | Northrop Grumman Systems Corporation | C | 1 · Not fully interchangeable |
Government demand
Open DLA RFQs (DIBBS)
- SPE7M426T445L · 8,339 EA · due Oct 5, 2026 · N · AMSC G · DIBBS
What the government paid
| Date | Vendor | Qty | Unit cost | Amount | Buyer | Reference |
|---|---|---|---|---|---|---|
| Mar 16, 2026 | Eagle Aviation Manufacturing Inc. L10K9 | 7,706 | $0.75 | Dla | SPE7M126P4926 | |
| Jan 28, 2026 | Noble Supply & Logistics, LLC 1HEN9 | 545 | $1.07 | Dla | SPE4A526FACG4 | |
| Jan 16, 2026 | Dbr Industries, Inc. 1K697 | 170 | $2.69 | Dla | SPE7M426V1804 | |
| Jan 15, 2026 | Blade Industrial Products Inc 1JYT1 | 300 | $1.51 | Dla | SPE7M426V1773 | |
| Feb 17, 2023 | Blade Industrial Products Inc 1JYT1 | 2,874 | $1.24 | Dla | SPE7M423V2004 | |
| Dec 13, 2021 | Blade Industrial Products Inc 1JYT1 | 3,801 | $1.04 | Dla | SPE7M522V2268 |
Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 6 buys on record in total.
Sellers with confirmed stock
No seller has confirmed stock on this NSN in the last 60 days. Watch it and we will email you when one does, or request a quote on 10V60-141-253.
Listings appear here only while the seller has confirmed them within 60 days. Sellers: list this part free.
DLA management data
- FLIS unit price
- $1.39
- Unit of issue
- EA
- Acquisition advice
- D — Stocked, centrally managed (DLA)
- Source of supply
- SMS
- Shelf life code
- Y
- Effective
- Feb 1, 2026
Item characteristics
- Outside Diameter
- INCHES MINIMUM 5.594 AND INCHES MAXIMUM 5.680
- Cross-Sectional Height
- INCHES MINIMUM 0.135 AND INCHES MAXIMUM 0.143
- Center Hole Diameter
- INCHES MINIMUM 5.336 AND INCHES MAXIMUM 5.382
- Material
- RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Related stock numbers
Other NSNs filed under the same part numbers.
- 00-001-4810 · O-Ring
- 00-003-0616 · O-Ring
- 00-003-9157 · O-Ring
- 00-004-5074 · O-Ring
- 00-004-7602 · Filter,Band Pass
- 00-005-3619 · O-Ring
- 00-006-2349 · O-Ring
- 00-007-6143 · O-Ring
About this page
An NSN is 13 digits: the 4-digit Federal Supply Class and the 9-digit NIIN. Cross-references come from the federal logistics record; demand from DLA DIBBS, SAM.gov and FPDS; ADs from the Federal Register. Refreshed nightly. Market Pulse shows the whole market.
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