Home · FSC 5331 O-Ring · NSN 5331-01-005-0536

NSN 5331-01-005-0536 — O-Ring

NIIN 01-005-0536 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

NSN 5331-01-005-0536 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 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 AS3209-389. The unit of issue is EA and the FLIS list price is $17.90.

The U.S. government has bought this item 5 times on record, 1 of them in the last 24 months, most recently on July 29, 2025 at $21.89 each from Blade Industrial Products Inc. The median unit price paid over 36 months is $21.89. 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.

part numbers from 3 CAGEs

open solicitations, all agencies

government buy in 24 months · median $21.89

sellers with confirmed stock

Know someone who should see this?

Cross-references

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

Part number	CAGE	Manufacturer	Reference	Variation
AS3209-389	81343	Society Of Automotive Engineers Inc	3 · Design control (vendor)	9 · Reference only
AS3209-389	0U583	Sae International	3 · Design control (vendor)	2 · Fully interchangeable
SAE-AMS7276	0U583	Sae International	3 · Design control (vendor)	1 · Not fully interchangeable
M83248/1-389	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-83248/1	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 Jul 29, 2025. Watch this NSN and we will email you when it is solicited.

What the government paid

Date	Vendor	Qty	Unit cost	Buyer	Reference
Jul 29, 2025	Blade Industrial Products Inc 1JYT1	113	$21.89	Dla	SPE7L125P8634
Jun 11, 2013	Blade Industrial Products Inc 1JYT1	118	$6.72	Dla	SPM5E813M6272
Apr 3, 2008	Blade Industrial Products Inc 1JYT1	19	$6.60	Dla	SPM5M208V1994
Jan 26, 2008	Seals & Packings, LLC 0XK26	50	$6.79	Dla	SPM5M208V1216
Jun 22, 2002	Seals & Packings, LLC 0XK26	30	$6.73	Dla	SP050000D00836243

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 5 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 AS3209-389.

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

DLA management data

FLIS unit price: $17.90
Unit of issue: EA
Acquisition advice: Z — Insurance item
Source of supply: SMS
Effective: Oct 1, 2025

Item characteristics

Outside Diameter: INCHES NOMINAL 20.375
Temp Rating: FAHRENHEIT -20.0 AND FAHRENHEIT 400.0
Cross-Sectional Height: INCHES MINIMUM 0.205 AND INCHES MAXIMUM 0.215
Center Hole Diameter: INCHES MINIMUM 19.860 AND INCHES MAXIMUM 20.050
Elongation Percentage: MAXIMUM 125
Hardness Rating: SHORE DUROMETER A NOMINAL 75.0
Material: RUBBER FLUOROCARBON CLASS FPM

Related stock numbers

Other NSNs filed under the same part numbers.

00-005-0482 · O-Ring
00-005-0483 · O-Ring
00-005-0799 · O-Ring
00-020-0067 · O-Ring
00-020-0105 · O-Ring
00-020-0186 · O-Ring
00-083-7400 · O-Ring
00-103-1506 · 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.