Home · FSC 5331 O-Ring · NSN 5331-01-312-7662
NSN 5331-01-312-7662 — O-Ring
NIIN 01-312-7662 · unit of issue EA · AAC D (stocked, centrally managed (dla)) · source of supply SMS
Buying rhythm
from 9 government buys since 2017
The government has bought this item about every 3 months (irregular, gaps vary ±177%). Last buy May 8, 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 irregular items, "next buy about one typical gap after the last, give or take 151 days" caught the actual next buy 31% of the time across 21,161 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 5331-01-312-7662 is the national stock number for an o-ring in federal supply class 5331 (O-Ring). It cross-references to 3 manufacturer part numbers from 5 CAGE codes, including The Boeing Company, Precision Seals Inc, Skf Usa Inc.; the primary is 29980-2108. The unit of issue is EA and the FLIS list price is $173.15.
The U.S. government has bought this item 14 times on record, 7 of them in the last 24 months, most recently on May 8, 2026 at $133.73 each from Noble Supply & Logistics, LLC. The median unit price paid over 36 months is $133.62. 1 solicitation is open right now, the soonest due October 1, 2026 for 50 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.
3
part numbers from 5 CAGEs
1
open solicitation, all agencies
7
government buys in 24 months · median $133.62
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 |
|---|---|---|---|---|
| 7-311527068-17 | 8V613 | The Boeing Company | 1 · Design control | 2 · Fully interchangeable |
| 7-311527068-17 | 48T42 | The Boeing Company | 3 · Design control (vendor) | 2 · Fully interchangeable |
| 29980-2108 | 63769 | Precision Seals Inc | 5 · Secondary reference | 9 · Reference only |
| 558519 | 80201 | Skf Usa Inc. | 5 · Secondary reference | 2 · Fully interchangeable |
| 7-311527068-17 | 02731 | Mcdonnell Douglas Helicopter Co Inc | 5 · Secondary reference | 9 · Reference only |
Government demand
Open DLA RFQs (DIBBS)
- SPE7L126T14X5 · 50 EA · due Oct 1, 2026 · N · AMSC P · DIBBS
What the government paid
| Date | Vendor | Qty | Unit cost | Amount | Buyer | Reference |
|---|---|---|---|---|---|---|
| May 8, 2026 | Noble Supply & Logistics, LLC 1HEN9 | 6 | $133.73 | Dla | SPE4A526FB11R | |
| Feb 24, 2026 | Noble Supply & Logistics, LLC 1HEN9 | 10 | $133.73 | Dla | SPE4A526FAAZC | |
| Nov 8, 2025 | Noble Supply & Logistics, LLC 1HEN9 | 10 | $133.73 | Dla | SPE4A526FA1DX | |
| Sep 10, 2025 | Noble Supply & Logistics, LLC 1HEN9 | 9 | $133.73 | Dla | SPE4A525FBK9Y | |
| Jun 11, 2025 | Noble Supply & Logistics, LLC 1HEN9 | 9 | $133.50 | Dla | SPE4A525FATXB | |
| Apr 21, 2025 | Noble Supply & Logistics, LLC 1HEN9 | 11 | $133.50 | Dla | SPE4A525FAZP0 | |
| Mar 4, 2025 | Noble Supply & Logistics, LLC 1HEN9 | 6 | $133.50 | Dla | SPE4A525FAA7V | |
| Oct 11, 2023 | Noble Supply & Logistics, LLC 1HEN9 | 8 | $131.95 | Dla | SPE4A624FA8D1 | |
| Nov 2, 2017 | Jamaica Bearings Co. Inc. 12516 | 100 | $122.00 | Dla | SPE5E818P0459 | |
| Sep 22, 2014 | Dreamfind, Inc. 1V4T7 | 25 | $102.00 | Dla | SPE5E814V9268 | |
| Aug 8, 2014 | Dreamfind, Inc. 1V4T7 | 30 | $83.89 | Dla | SPE5E814V8080 | |
| Jul 9, 2013 | Lynn Electronics LLC 19151 | 110 | $91.00 | Dla | SPM5E813M6876 | |
| Nov 28, 2007 | New Era Contract Sales Inc 0FA68 | 261 | $65.90 | Dla | SPM5M208M0258 | |
| Mar 13, 2001 | Triman Industries Inc 0ZBE8 | 300 | $41.19 | Dla | SP054001MN611 |
Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 14 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 29980-2108.
Listings appear here only while the seller has confirmed them within 60 days. Sellers: list this part free.
DLA management data
- FLIS unit price
- $173.15
- Unit of issue
- EA
- Acquisition advice
- D — Stocked, centrally managed (DLA)
- Source of supply
- SMS
- Effective
- Jun 1, 2026
Item characteristics
- Cross-Sectional Height
- INCHES MINIMUM 0.335 AND INCHES MAXIMUM 0.365
- Center Hole Diameter
- INCHES MINIMUM 9.005 AND INCHES MAXIMUM 9.030
- Proprietary Characteristics
- PACS
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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