Home · FSC 5331 O-Ring · NSN 5331-01-330-5280

NSN 5331-01-330-5280 — O-Ring

NIIN 01-330-5280 · unit of issue EA · AAC J (not stocked, central procurement) · source of supply SMS

NSN 5331-01-330-5280 is the national stock number for an o-ring in federal supply class 5331 (O-Ring). It cross-references to 5 manufacturer part numbers from 3 CAGE codes, including Society Of Automotive Engineers Inc, Sae International, Military Specifications Promulgated By Military Departments/Agencies Under Authority Of Defense Standardization Manual 4120 3-M; the primary is A53581-170. The unit of issue is EA and the FLIS list price is $4.24.

The U.S. government has bought this item 1 time on record, 1 of them in the last 24 months, most recently on August 20, 2026 for $478 from Blade Industrial Products Inc. No seller has confirmed stock of it here in the last 30 days; watching the number is free and the first listing triggers an alert.

part numbers from 3 CAGEs

open solicitations, all agencies

government buy in 24 months

sellers with confirmed stock

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Cross-references

Part numbers filed against this stock number, with the manufacturer (CAGE) and the FLIS reference codes.

Part number	CAGE	Manufacturer	Reference	Variation
A53581-170	81343	Society Of Automotive Engineers Inc	3 · Design control (vendor)	9 · Reference only
AS3581-170	0U583	Sae International	3 · Design control (vendor)	2 · Fully interchangeable
SAE-AS3581	0U583	Sae International	3 · Design control (vendor)	1 · Not fully interchangeable
A53581-170	0U583	Sae International	5 · Secondary reference	9 · Reference only
M83248/2-170	81349	Military Specifications Promulgated By Military Departments/Agencies Under Authority Of Defense Standardization Manual 4120 3-M	5 · Secondary reference	9 · Reference only
MIL-R-83248/2	81349	Military Specifications Promulgated By Military Departments/Agencies Under Authority Of Defense Standardization Manual 4120 3-M	5 · Secondary reference	9 · Reference only

Government demand

Nothing open right now. Last government buy Aug 20, 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
Aug 20, 2026	Blade Industrial Products Inc 1JYT1			$478	Dla	SPE7LX26D0002

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 1 buy 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 A53581-170.

Listings appear here only while the seller has confirmed them within 60 days. Sellers: list this part free.

DLA management data

FLIS unit price: $4.24
Unit of issue: EA
Acquisition advice: J — Not stocked, central procurement
Source of supply: SMS
Shelf life code: Z
Effective: Oct 1, 2026

Item characteristics

Cross-Sectional Height: INCHES MINIMUM 0.100 AND INCHES MAXIMUM 0.106
Center Hole Diameter: INCHES MINIMUM 7.692 AND INCHES MAXIMUM 7.782
Material: RUBBER FLUOROCARBON CLASS FPM

Related stock numbers

Other NSNs filed under the same part numbers.

00-001-6681 · O-Ring
00-103-2911 · O-Ring
00-132-6940 · O-Ring
00-140-7664 · O-Ring
00-140-7668 · O-Ring
00-165-1981 · O-Ring
00-166-1077 · O-Ring
00-166-1078 · 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.