Home · NSN 00-331-3537

NSN 00-331-3537 — Valve,Safety Relief

NIIN 00-331-3537 · unit of issue EA · AAC J (not stocked, central procurement) · source of supply SMS

NSN 00-331-3537 is the national stock number for a valve,safety relief. It cross-references to 3 manufacturer part numbers from 3 CAGE codes, including Naval Air Systems Command Managed Original Design Activity Not Material/Parts Supplier, Rgi Inc, Circor Aerospace, Inc.; the primary is 1634. The unit of issue is EA and the FLIS list price is $124.85.

No government purchase of this stock number is on our record yet. 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.

3

part numbers from 3 CAGEs

0

open solicitations, all agencies

0

government buys in 24 months

0

sellers with confirmed stock

Watch NSN 00-331-3537: 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
65A81C103730003Naval Air Systems Command Managed Original Design Activity Not Material/Parts Supplier1 · Design control2 · Fully interchangeable
163459375Rgi Inc3 · Design control (vendor)2 · Fully interchangeable
P66-67391816Circor Aerospace, Inc.3 · Design control (vendor)2 · Fully interchangeable

Government demand

Nothing open right now. Watch this NSN and we will email you when it is solicited.

What the government paid

No government purchase on record for this NSN.

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

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 1634.

Request 1634

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
$124.85
Unit of issue
EA
Acquisition advice
J — Not stocked, central procurement
Source of supply
SMS
Effective
Jan 1, 2026

Item characteristics

Nominal Pipe Size Accommodated
FIRST END INCHES 0.250
Nominal Pipe Size Accommodated
SECOND END INCHES 0.250
Thread Direction
FIRST END RIGHT-HAND
Thread Direction
SECOND END RIGHT-HAND
Flow Control Device
POPPET
Disk Loading Method
SPRING
Maximum Operating Temp
SINGLE RESPONSE FAHRENHEIT 250.0
Valve Operation Method
AUTOMATIC
Connection Type
FIRST END THREADED INTERNAL PIPE
Connection Type
SECOND END THREADED EXTERNAL PIPE
Thread Quantity Per Inch
18
Nominal Thread Size
SECOND END INCHES 0.250
Nominal Thread Size
FIRST END INCHES 0.250
Operating Pressure
SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 200.0
Opening Pressure Setting
POUNDS PER SQUARE INCH 20.0
Material
BODY COPPER ALLOY
Material
SEAT COPPER ALLOY
Material
FLOW CONTROL DEVICE STEEL CORROSION RESISTING
Media For Which Designed
THIRD RESPONSE NITROGEN, GASEOUS
Media For Which Designed
SECOND RESPONSE FUEL/OIL, HYDROCARBON
Media For Which Designed
FIRST RESPONSE AIR
Thread Series Designator
FIRST END NPT
Thread Series Designator
SECOND END NPT

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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