Home · FSC 5331 O-Ring · NSN 5331-01-135-2139

NSN 5331-01-135-2139 — O-Ring

NIIN 01-135-2139 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

NSN 5331-01-135-2139 is the national stock number for an o-ring in federal supply class 5331 (O-Ring). It cross-references to 9 manufacturer part numbers from 8 CAGE codes, including Sae International, Society Of Automotive Engineers Inc, Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M; the primary is 1706N2. The unit of issue is EA and the FLIS list price is $8.59.

The U.S. government has bought this item 1 time on record, 1 of them in the last 24 months, most recently on September 24, 2026 for $435 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 8 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
MS28775-350	0U583	Sae International	3 · Design control (vendor)	2 · Fully interchangeable
MS28775-350	81343	Society Of Automotive Engineers Inc	3 · Design control (vendor)	9 · Reference only
SAE-AS28775	0U583	Sae International	3 · Design control (vendor)	1 · Not fully interchangeable
MS28775-350	96906	Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M	5 · Secondary reference	9 · Reference only
W 4073 330 AL	S3092	Rheinmetall Air Defence Ag	5 · Secondary reference	2 · Fully interchangeable
447-5397	A486G	Nimikkeistokeskus Ncb Finland	6	9 · Reference only
1706N2	56442	Diamond Reo Truck Co	E	8
KC9459	56442	Diamond Reo Truck Co	E	8
MIL-P-25732C	81349	Military Specifications Promulgated By Military Departments/Agencies Under Authority Of Defense Standardization Manual 4120 3-M	E	8
MIL-STD-413C NOT 1	81349	Military Specifications Promulgated By Military Departments/Agencies Under Authority Of Defense Standardization Manual 4120 3-M	E	8
PGF9648-19	1X0J7	Volvo Construction Equipment North America, LLC	E	8

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	Blade Industrial Products Inc 1JYT1			$435	Dla	SPE7L126V006T » 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 1706N2.

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

DLA management data

FLIS unit price: $8.59
Unit of issue: EA
Acquisition advice: Z — Insurance item
Source of supply: SMS
Shelf life code: Y
Effective: Oct 1, 2025

Item characteristics

Outside Diameter: INCHES NOMINAL 5.020
Temp Rating: FAHRENHEIT -65.0 AND FAHRENHEIT 275.0
Cross-Sectional Height: INCHES MINIMUM 0.205 AND INCHES MAXIMUM 0.215
Center Hole Diameter: INCHES MINIMUM 4.585 AND INCHES MAXIMUM 4.600
Elongation Percentage: MAXIMUM 160
Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR

Related stock numbers

Other NSNs filed under the same part numbers.

00-003-6690 · O-Ring
00-046-4601 · O-Ring
00-055-4976 · O-Ring
00-057-2028 · O-Ring
00-057-2029 · O-Ring
00-063-0919 · O-Ring
00-068-9528 · O-Ring
00-079-6496 · 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.