Home · FSC 4820 Valves, Nonpowered · NSN 4820-01-130-9549

NSN 4820-01-130-9549 — Valve,Safety Relief

NIIN 01-130-9549 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

NSN 4820-01-130-9549 is the national stock number for a valve,safety relief in federal supply class 4820 (Valves, Nonpowered). It cross-references to 1 manufacturer part number from 2 CAGE codes, including American Turbo Systems Inc, Walker Power Systems, Inc. Dba Tiernay Turbines; the primary is 100534. The unit of issue is EA and the FLIS list price is $7,323.75.

The U.S. government has bought this item 1 time on record, 1 of them in the last 24 months, most recently on August 28, 2026 for $15,750 from Computer Locaters, 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 number from 2 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
100534	0WE82	American Turbo Systems Inc	3 · Design control (vendor)	2 · Fully interchangeable
100534	51913	Walker Power Systems, Inc. Dba Tiernay Turbines	5 · Secondary reference	9 · Reference only

Government demand

Nothing open right now. Last government buy Aug 28, 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 28, 2026	Computer Locaters, Inc 0USU9			$15,750	Dla	SPE7M025V5925

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 100534.

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

DLA management data

FLIS unit price: $7,323.75
Unit of issue: EA
Acquisition advice: Z — Insurance item
Source of supply: SMS
Effective: Oct 1, 2025

Item characteristics

Flow Control Device: PISTON
Disk Loading Method: SPRING
Bolt Hole Quantity: 6
Valve Operation Method: AUTOMATIC
Flange Shape: FIRST END ROUND WITH HOLES
Connection Type: FIRST END FLANGE
Flange Face Design: FIRST END PLAIN

Related stock numbers

Other NSNs filed under the same part numbers.

00-881-5536 · Adapter,Straight,Tube To Hose
01-296-4256 · Tubing,Nonmetallic
01-559-0179 · Valve,Relief,Pressure And Temper

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.