NSN Explorer

FSC 4820 × VALVE,CHECK

VALVE,CHECK

4820-00-123-4230

Open for bid

1 open solicitation on record right now — quantity, close date, and where to submit.

Solicitation Qty Status
SPE7M1-26-T-326T 37 Closes in 4d Bid →

Can you win it?

Restricted — approved sources only, based on the latest AMSC/AMC on record.

AMSC / AMC
Competition

What it is — can you make it?

Dimensions, the FLIS specification requirements, and the manufacturer part numbers already qualified against this NSN.

Specifications

From the federal catalog (DLA FLIS / PUB LOG) — what your part has to meet. Cited specification documents can be looked up in ASSIST Quick Search ↗, DoD's public spec repository — copy the document number in.

Requirement Value
THREAD CLASS AAJD 3A
THREAD DIRECTION AAJF FIRST END RIGHT-HAND
FLOW CONTROL DEVICE ADQU POPPET
DISK LOADING METHOD ADSU SPRING
MAXIMUM OPERATING TEMP AEHZ SINGLE RESPONSE FAHRENHEIT 500.0
CONNECTION STYLE AHNC
VALVE OPERATION METHOD AQLR AUTOMATIC
CONNECTION TYPE AWLS FIRST END THREADED EXTERNAL TUBE
MOUNTING POSITION BBJX HORIZONTAL OR VERTICAL
NOMINAL THREAD SIZE CQJX FIRST END INCHES 0.438
OPERATING PRESSURE CQQF SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 80.0
SEAT ANGLE CQRB FIRST END DEGREES 37.0
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED CWFD FIRST END INCHES 0.250
MATERIAL MATT OVERALL ALUMINUM ALLOY
MEDIA FOR WHICH DESIGNED MEDA SINGLE RESPONSE AIR
SURFACE TREATMENT SFTT ANODIZE
STYLE DESIGNATOR STYL
THREAD SERIES DESIGNATOR THSD FIRST END UNF

Manufacturer part numbers

Commercial part numbers cross-referenced to this NSN in the federal catalog — the parts that have been accepted as satisfying this stock number, and who makes them.

Part number CAGE Manufacturer
294A-4TT-0.5 91816 CIRCOR AEROSPACE, INC. DBA CIRCOR AEROSPACE INC
32765 24235 WILLIAMS INTERNATIONAL CO., L.L.C.
3C2196-5 99240 CRISSAIR INC DIV ESCO TECHNOLOGIES
3C2196-7 99240 CRISSAIR INC DIV ESCO TECHNOLOGIES
58555-5 77646 NORTHROP GRUMMAN SYSTEMS CORPORATION DBA AEROSPACE SYSTEMS DIV AERONAUTICS SYSTEMS

What it pays — so you can quote

The government's own price and demand record for this NSN — what past awards cleared at, so you know where to land your quote.

Latest unit price
Purchases
0
Total spend
Last purchased
Purchase records
Total demand
Latest award total

Price history

What the government paid per unit

Fewer than two priced purchases on record — see the table below.

Purchase history

No priced purchases on record for this NSN yet.

Related contract actions

Contract action totals, not unit prices — obligation amounts from USAspending for related awards, shown for context only. These do not appear on the price chart above.

No related contract actions on record.

Demand history

Every solicitation we've indexed for this NSN, open and closed — 1 on record. Closed RFQs (expired, cancelled, or awarded) stay here as a record of past demand; they never get removed.

Solicitation Issued Closes / closed Qty Status
SPE7M1-26-T-326T Sep 4, 2026 Sep 14, 2026 37 Open View at DIBBS →

Open RFQs on DIBBS → DIBBS award history ↗

About this data

  • Unit prices: DLA DIBBS award records — every row links to its government record.
  • AMSC: latest observed value from DIBBS solicitation history.
  • Contract action totals: USAspending, context only.
  • Full methodology →