Home · FSC 4820 Valves, Nonpowered · NSN 4820-01-187-1968

NSN 4820-01-187-1968 — Valve,Safety Relief

NIIN 01-187-1968 · unit of issue EA · AAC J (not stocked, central procurement) · source of supply SMS

NSN 4820-01-187-1968 is the national stock number for a valve,safety relief in federal supply class 4820 (Valves, Nonpowered). It cross-references to 2 manufacturer part numbers from 2 CAGE codes, including Hunt Valve Company Inc Dba Union Flonetics, Hunt Valve Company, Inc.; the primary is R10AF1F111-BM1. The unit of issue is EA and the FLIS list price is $87,156.76.

The U.S. government has bought this item 6 times on record, most recently on June 5, 2023 at $65,483.00 each from Hunt Valve Company Inc Dba Union Flonetics. 1 solicitation is open right now, the soonest due September 29, 2026 for 1 EA. 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 2 CAGEs

open solicitation, all agencies

government buys 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
R10AF1F111-BM1	34889	Hunt Valve Company Inc Dba Union Flonetics	3 · Design control (vendor)	9 · Reference only
R10AF1F111-BM1	11859	Hunt Valve Company, Inc.	3 · Design control (vendor)	2 · Fully interchangeable
R10AFUU11	34889	Hunt Valve Company Inc Dba Union Flonetics	5 · Secondary reference	9 · Reference only

Government demand

Open DLA RFQs (DIBBS)

SPE7MC26T270X · 1 EA · due Sep 29, 2026 · N · AMSC D · DIBBS

What the government paid

Date	Vendor	Qty	Unit cost	Buyer	Reference
Jun 5, 2023	Hunt Valve Company Inc Dba Union Flonetics 34889	1	$65,483.00	Dla	SPE7M123V6988
May 7, 2018	Hunt Valve Company Inc Dba Union Flonetics 34889	1	$46,680.00	Dla	SPE7MC18V6541
Mar 15, 2018	Hunt Valve Company Inc Dba Union Flonetics 34889	1	$46,680.00	Dla	SPE7M318P3112
Sep 18, 2006	Hunt Valve Company Inc Dba Union Flonetics 34889	5	$12,100.00	Dla	SPM7M206M5351
Mar 27, 2006	Hunt Valve Company Inc Dba Union Flonetics 34889	1	$21,450.00	Dla	SPM7M206M2647
May 1, 1998	Hunt Valve Company Inc Dba Union Flonetics 34889	1	$2,044.50	Dla	SP077098MA233

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 6 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 R10AF1F111-BM1.

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

DLA management data

FLIS unit price: $87,156.76
Unit of issue: EA
Acquisition advice: J — Not stocked, central procurement
Source of supply: SMS
Effective: Oct 1, 2025

Item characteristics

Flow Control Device: DISK
Bonnet Type: INSIDE SPRING
Bonnet Attachment Method: UNION
Maximum Operating Temp: SINGLE RESPONSE FAHRENHEIT 250.0
Valve Operation Method: AUTOMATIC OR MANUAL
Adjustable Pressure Range: POUNDS PER SQUARE INCH 48.0 TO 59.0
Operating Pressure: SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 59.0
Material: BODY COPPER ALLOY
Material: FLOW CONTROL DEVICE NICKEL ALLOY
Material: STEM STEEL CORROSION RESISTING
Material: SEAT NICKEL ALLOY
Furnished Items And Quantity: LEVER 1

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.