Home · FSC 5331 O-Ring · NSN 5331-01-238-0318
NSN 5331-01-238-0318 — O-Ring
NIIN 01-238-0318 · unit of issue EA · AAC D (stocked, centrally managed (dla)) · source of supply SMS
NSN 5331-01-238-0318 is the national stock number for an o-ring in federal supply class 5331 (O-Ring). It cross-references to 4 manufacturer part numbers from 4 CAGE codes, including Society Of Automotive Engineers Inc, Sae International, Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M; the primary is AS29513-171. The unit of issue is EA and the FLIS list price is $4.55.
The U.S. government has bought this item 2 times on record, 2 of them in the last 24 months, most recently on September 24, 2026 for $1,476 from Dbr Industries, Inc.. 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.
4
part numbers from 4 CAGEs
0
open solicitations, all agencies
2
government buys in 24 months
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 |
|---|---|---|---|---|
| AS29513-171 | 81343 | Society Of Automotive Engineers Inc | 3 · Design control (vendor) | 9 · Reference only |
| MS29513-171 | 0U583 | Sae International | 3 · Design control (vendor) | 2 · Fully interchangeable |
| SAE-AS29513 | 0U583 | Sae International | 3 · Design control (vendor) | 1 · Not fully interchangeable |
| AS29513-171 | 0U583 | Sae International | 5 · Secondary reference | 9 · Reference only |
| MS29513-171 | 96906 | Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M | 5 · Secondary reference | 9 · Reference only |
| MS9021-171 | D9182 | Zf Industrieantriebe Witten Gmbh | C | 1 · Not fully interchangeable |
Government demand
Nothing open right now. Last government buy Sep 24, 2026. Watch this NSN and we will email you when it is solicited.
What the government paid
| Date | Vendor | Qty | Unit cost | Amount | Buyer | Reference |
|---|---|---|---|---|---|---|
| Sep 24, 2026 | Dbr Industries, Inc. 1K697 | $1,476 | Dla | SPE7LX26D0003 | ||
| Sep 10, 2026 | Dbr Industries, Inc. 1K697 | $1,420 | Dla | SPE7LX26D0003 |
Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 2 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 AS29513-171.
Listings appear here only while the seller has confirmed them within 60 days. Sellers: list this part free.
DLA management data
- FLIS unit price
- $4.55
- Unit of issue
- EA
- Acquisition advice
- D — Stocked, centrally managed (DLA)
- Source of supply
- SMS
- Shelf life code
- Y
- Effective
- Oct 1, 2025
Item characteristics
- Outside Diameter
- INCHES NOMINAL 8.193
- Cross-Sectional Height
- INCHES MINIMUM 0.100 AND INCHES MAXIMUM 0.106
- Center Hole Diameter
- INCHES MINIMUM 7.957 AND INCHES MAXIMUM 8.017
- Elongation Percentage
- MAXIMUM 200
- Hardness Rating
- SHORE DUROMETER A NOMINAL 65.0
- 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
- 00-005-3619 · O-Ring
- 00-006-2349 · O-Ring
- 00-007-6143 · O-Ring
- 00-025-3772 · 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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