Home · NSN 00-328-8180

NSN 00-328-8180 — Valve,Safety Relief

NIIN 00-328-8180 · unit of issue EA · AAC Y (terminal item, replaced) · source of supply SMS

NSN 00-328-8180 is the national stock number for a valve,safety relief. It cross-references to 3 manufacturer part numbers from 6 CAGE codes, including Northrop Grumman Systems Corporation, Eaton Aerospace LLC, Tactair Fluid Controls Inc; the primary is 51210. The unit of issue is EA and the FLIS list price is $2,903.88.

No government purchase of this stock number is on our record yet. No seller has confirmed stock of it here in the last 30 days; watching the number is free and the first listing triggers an alert.

part numbers from 6 CAGEs

open solicitations, 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
A51H9190-1	79RG9	Northrop Grumman Systems Corporation	1 · Design control	2 · Fully interchangeable
51210	99643	Eaton Aerospace LLC	3 · Design control (vendor)	2 · Fully interchangeable
HP1207100-1	70236	Tactair Fluid Controls Inc	3 · Design control (vendor)	2 · Fully interchangeable
A51H9190-1	26512	Northrop Grumman Systems Corporation	5 · Secondary reference	9 · Reference only
A51H9190-1	61174	Northrop Grumman Systems Corporation	5 · Secondary reference	9 · Reference only
HP1207100-1	84685	Teledyne Hydra-Power Div Of Teledyne Inc	5 · Secondary reference	9 · Reference only

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 51210.

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

DLA management data

FLIS unit price: $2,903.88
Unit of issue: EA
Acquisition advice: Y — Terminal item, replaced
Source of supply: SMS
Shelf life code: 8
Effective: Oct 1, 2026

Item characteristics

Thread Class: 3A
Thread Class: 3B
Thread Direction: SECOND END RIGHT-HAND
Thread Direction: FIRST END RIGHT-HAND
Flow Control Device: POPPET
Disk Loading Method: SPRING
Valve Discharge Flow Rate: GALLONS PER MINUTE 2.0
Valve Operation Method: AUTOMATIC
Connection Type: SECOND END THREADED INTERNAL BOSS
Connection Type: FIRST END THREADED EXTERNAL TUBE
Features Provided: VALVE STEM LOCK SHIELD AND PRESSURE TIGHT OUTLET SIDE
Thread Quantity Per Inch: 18
Nominal Thread Size: SECOND END INCHES 0.562
Nominal Thread Size: FIRST END INCHES 0.562
Operating Pressure: SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 3000.0
Seat Angle: FIRST END DEGREES 18.0
Seat Angle: SECOND END DEGREES 37.0
Nominal Outside Diameter Tube Accommodated: FIRST END INCHES 0.375
Nominal Outside Diameter Tube Accommodated: SECOND END INCHES 0.375
Media For Which Designed: SINGLE RESPONSE FUEL/OIL, HYDROCARBON
Surface Treatment: LOCATION NOT OTHERWISE SPECIFIED PAINT
Thread Series Designator: SECOND END UNIFIED NATIONAL JOINT FINE (UNJF)
Thread Series Designator: FIRST END UNIFIED NATIONAL JOINT FINE (UNJF)

Related stock numbers

Other NSNs filed under the same part numbers.

00-104-4140 · Terminal,Lug
00-290-4528 · Button,Plug
00-715-8638 · Plug,Machine Thread
01-288-9712 · Handle,Cannister
01-332-6840 · Cable Assembly,Radio Frequency
01-366-5441 · Bearing,Ball,Thrust

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.