Home · FSC 4820 Valves, Nonpowered · NSN 4820-01-248-6253

NSN 4820-01-248-6253 — Valve,Safety Relief

NIIN 01-248-6253 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

Buying rhythm

from 10 government buys since 2017

The government has bought this item about every 10 months (loose, gaps vary ±83%). Last buy Aug 5, 2026. The gaps are too uneven to put a window on the next one. 1 solicitation is open right now.

How well this works: for loose items, "next buy about one typical gap after the last, give or take 136 days" caught the actual next buy 37% of the time across 35,590 past buys, against 24% for a fixed "one year later" guess. A rhythm, not a schedule: DLA buys when stock and demand say so. Every item due for a buy now.

NSN 4820-01-248-6253 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 3 CAGE codes, including Technetics Group LLC, Senior Operations LLC; the primary is 7-050566. The unit of issue is EA and the FLIS list price is $39,781.02.

The U.S. government has bought this item 13 times on record, 5 of them in the last 24 months, most recently on August 5, 2026 at $28,695.64 each from Transaero, Inc.. The median unit price paid over 36 months is $28,695.64. 1 solicitation is open right now, the soonest due October 5, 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.

2

part numbers from 3 CAGEs

1

open solicitation, all agencies

5

government buys in 24 months · median $28,695.64

0

sellers with confirmed stock

Watch NSN 4820-01-248-6253: an email the morning the government solicits or buys it, or an AD names it. Free.
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Cross-references

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

Part numberCAGEManufacturerReferenceVariation
7-050566-10307107Technetics Group LLC3 · Design control (vendor)9 · Reference only
7-050566-10312193Technetics Group LLC3 · Design control (vendor)2 · Fully interchangeable
7-050566-10303024Senior Operations LLC5 · Secondary reference9 · Reference only
7-05056603024Senior Operations LLCD9 · Reference only

Government demand

Open DLA RFQs (DIBBS)

What the government paid

DateVendorQtyUnit costAmountBuyerReference
Aug 5, 2026Transaero, Inc. 275411$28,695.64DlaSPE7MC26V3670
Jul 6, 2026Transaero, Inc. 275411$28,695.64DlaSPE7MC26V3452
Sep 2, 2025Transaero, Inc. 275411$28,695.64DlaSPE7MC25V5668
Jul 30, 2025Transaero, Inc. 275412$28,695.64DlaSPE7MC25V5144
Jan 10, 2025Transaero, Inc. 275411$28,516.86DlaSPE7L325V2252
Oct 10, 2023Transaero, Inc. 275412$26,801.84DlaSPE7MC24V0278
Sep 1, 2022Transaero, Inc. 275411$26,801.84DlaSPE7MC22V9604
Feb 28, 2020Transaero, Inc. 275412$21,969.23DlaSPE7MC20P2198
Nov 29, 2017Aviarms Support Corp 589851$11,255.00DlaSPE7MC18P1201
Jul 21, 2017Echelon Supply And Service, Inc. 611251$12,972.00DlaSPE7MC17P5352
Feb 12, 2015Jgils, LLC 1N8T87$7,608.38DlaSPE7MC15V2649
Sep 26, 2011Martin Military Inc 1WZZ25$7,517.00DlaSPM7M511V6363
Dec 9, 2006Simplex Supply Co. Inc 029682$11,571.75DlaSPM7M207M1097

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 13 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 7-050566.

Request 7-050566

No account needed. Goes to the sellers who carry this number or its family.

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

DLA management data

FLIS unit price
$39,781.02
Unit of issue
EA
Acquisition advice
Z — Insurance item
Source of supply
SMS
Effective
Oct 1, 2025

Item characteristics

Nominal Pipe Size Accommodated
ALL ENDS INCHES 0.500
Flow Control Device
DISK
Bonnet Type
INSIDE SPRING
Bonnet Attachment Method
THREADED
Valve Operation Method
AUTOMATIC
Connection Type
ALL ENDS UNTHREADED INTERNAL PIPE
Operating Pressure
SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 3000.0
Opening Pressure Setting
POUNDS PER SQUARE INCH 3200.0
Material
FLOW CONTROL DEVICE PLASTIC POLYAMIDE NYLON
Material
PACKING RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM
Material
STEM STEEL CORROSION RESISTING
Material
BODY STEEL CORROSION RESISTING

Related stock numbers

Other NSNs filed under the same part numbers.

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.

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