Home · FSC 5331 O-Ring · NSN 5331-01-446-1961

NSN 5331-01-446-1961 — O-Ring

NIIN 01-446-1961 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

NSN 5331-01-446-1961 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 4 CAGE codes, including Sae International, Society Of Automotive Engineers Inc, Leonardo Spa Helicopters Division - Production Site; the primary is AS3209-220. The unit of issue is EA and the FLIS list price is $0.56.

The U.S. government has bought this item 1 time on record, 1 of them in the last 24 months, most recently on September 17, 2026 for $1,063 from Blade Industrial Products 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.

part numbers from 4 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
AS3209-220	0U583	Sae International	3 · Design control (vendor)	2 · Fully interchangeable
SAE-AMS7276	0U583	Sae International	3 · Design control (vendor)	1 · Not fully interchangeable
AS3209-220	81343	Society Of Automotive Engineers Inc	5 · Secondary reference	9 · Reference only
AS3209-220	A0126	Leonardo Spa Helicopters Division - Production Site	5 · Secondary reference	2 · Fully interchangeable
MILR83248	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 Sep 17, 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 17, 2026	Blade Industrial Products Inc 1JYT1			$1,063	Dla	SPE7L126V234N » Award/Basic Package View

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 AS3209-220.

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

DLA management data

FLIS unit price: $0.56
Unit of issue: EA
Acquisition advice: Z — Insurance item
Source of supply: SMS
Effective: Nov 1, 2025

Item characteristics

Cross-Sectional Height: INCHES MINIMUM 0.135 AND INCHES MAXIMUM 0.143
Center Hole Diameter: INCHES MINIMUM 1.347 AND INCHES MAXIMUM 1.371
Material: RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM
Material Document And Classification: ASSN STD SINGLE MATERIAL RESPONSE A-S7276

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
00-020-0064 · O-Ring
00-020-0067 · O-Ring
00-020-0105 · O-Ring
00-020-0186 · O-Ring
00-020-0203 · 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.