Home · FSC 4820 Valves, Nonpowered · NSN 4820-01-479-2451

NSN 4820-01-479-2451 — Valve,Safety Relief

NIIN 01-479-2451 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

Buying rhythm

from 12 government buys since 2019

The government has bought this item about every 6 months (regular, gaps vary ±50%). Last buy Jan 12, 2026. If the rhythm holds, the next one falls between Apr 24, 2026 and Nov 12, 2026: a buy is due about now. 1 solicitation is open right now.

How well this works: for regular items, "next buy about one typical gap after the last, give or take 121 days" caught the actual next buy 42% of the time across 15,552 past buys, against 22% 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 4820-01-479-2451 is the national stock number for a valve,safety relief in federal supply class 4820 (Valves, Nonpowered). It cross-references to 8 manufacturer part numbers from 2 CAGE codes, including Dante Valve Company, Danco Valve Company; the primary is BAMAA06MHH. The unit of issue is EA and the FLIS list price is $22,449.72.

The U.S. government has bought this item 16 times on record, 2 of them in the last 24 months, most recently on January 12, 2026 at $17,705.00 each from Dante Valve Company. The median unit price paid over 36 months is $16,092.99. 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.

8

part numbers from 2 CAGEs

1

open solicitation, all agencies

2

government buys in 24 months · median $16,092.99

0

sellers with confirmed stock

Watch NSN 4820-01-479-2451: 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
BAMAA06MHH5P967Dante Valve Company3 · Design control (vendor)2 · Fully interchangeable
BAMAA06MHH/CD2000-M-565079Danco Valve Company3 · Design control (vendor)9 · Reference only
CD2000-M-5/BBMAA06MHH5P967Dante Valve Company3 · Design control (vendor)1 · Not fully interchangeable
BBMAA06MHH65079Danco Valve Company5 · Secondary reference9 · Reference only
CD2000-M-5/BBMAA06MHH65079Danco Valve Company5 · Secondary reference9 · Reference only
D2000-M ASSY BBMAA06MHH5P967Dante Valve Company5 · Secondary reference1 · Not fully interchangeable
D2000-M ASSY BBMAA06MHH65079Danco Valve Company5 · Secondary reference9 · Reference only
BBMAA06MHH/CD2065079Danco Valve CompanyC1 · Not fully interchangeable
CD2000-M-565079Danco Valve CompanyD9 · Reference only
D2000-M65079Danco Valve CompanyD9 · Reference only

Government demand

Open DLA RFQs (DIBBS)

What the government paid

DateVendorQtyUnit costAmountBuyerReference
Jan 12, 2026Dante Valve Company 5P9671$17,705.00DlaSPE7M126V4716
Dec 3, 2024Triman Industries Inc 0ZBE81$15,959.97DlaSPE7M225V0684
Jun 4, 2024Dante Valve Company 5P9671$16,226.00DlaSPE7MC24V6516
Jan 29, 2024Dante Valve Company 5P9671$14,853.00DlaSPE7MC24V2974
Sep 25, 2023Dante Valve Company 5P9671$14,853.00DlaSPE7MC23V9051
Mar 6, 2023Dante Valve Company 5P9671$14,632.00DlaSPE7MC23V3399
Aug 31, 2022Dante Valve Company 5P9671$12,392.00DlaSPE7MC22V033S
Jan 31, 2022Triman Industries Inc 0ZBE81$10,917.25DlaSPE7MC22P1511
Jan 11, 2021Triman Industries Inc 0ZBE81$9,839.00DlaSPE7M821V1103
Nov 24, 2020Triman Industries Inc 0ZBE82$9,294.00DlaSPE7M021V1053
May 6, 2020Triman Industries Inc 0ZBE81$9,332.00DlaSPE7M820V2364
Dec 4, 2019Triman Industries Inc 0ZBE82$9,282.50DlaSPE7M820V0785
Apr 25, 2013Triman Industries Inc 0ZBE82$7,577.00DlaSPM7M413V4540
Jan 22, 2013Dante Valve Company 5P9672$7,605.00DlaSPM7MC13V3709
Jan 17, 2013Triman Industries Inc 0ZBE81$7,666.00DlaSPM7M113V4218
Nov 21, 2012Dante Valve Company 5P9671$7,378.00DlaSPM7MC13M1384

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 16 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 BAMAA06MHH.

Request BAMAA06MHH

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
$22,449.72
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 2.000
Flow Control Device
DISK
Bonnet Type
INSIDE SPRING
Bonnet Attachment Method
UNION
Disk Loading Method
SPRING
Renewable Seat Ring Type
PRESSED-IN
Valve Operation Method
AUTOMATIC OR MANUAL
Connection Type
ALL ENDS UNTHREADED INTERNAL PIPE
Adjustable Pressure Range
POUNDS PER SQUARE INCH 75.0 TO 110.0
Part Name Assigned By Controlling Agency
VALVE, ANGLE RELIEF FORMERLY D50 SERIES 2" X 2" IPS; THIS VERSION IS VALVE MODEL NO. MIL-V-24332 LIQUID SERVICE WITH LEVER AND GAG
Special Features
SPRING MATERIAL IS MONEL; RATED FOR 400 PSI @ 200 DEG F AND 200 PSI @425 DEG F; SILVER-BRAZED END CONNECTIONS IAW MIL-F-1183. AS DIFFERENTIATED BY HAVING DOUBLE O-RING SEAL INSTEAD OF A STUFFING BOX
Material
BODY COPPER ALLOY
Media For Which Designed
SINGLE RESPONSE LIQUID
Proprietary Characteristics
PACS
Furnished Items And Quantity
TAILPIECE 2 AND HANDLE 1 AND SPRING 1 AND LEVER 1 AND LOCKING DEVICE 1

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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