Acquisition method (AMC)
1
FSC 4820 × VALVE,CHECK
VALVE,CHECK
4820-01-391-6364 FSC 4820
NSN 4820-01-391-6364 (also written 4820013916364; NIIN 01-391-6364) is a valve, check in Federal Supply Class 4820, Valves, Nonpowered. 4 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Sep 2026.
Open for bid
No open solicitations on record for this NSN right now.
Can you win it?
This item is coded as suitable for competitive acquisition (AMC 1).
Suffix (AMSC)
C
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC C: needs engineering source approval; other sources must qualify first. The codes describe the item's status on record, not any one solicitation. What the codes mean
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 | ALL ENDS RIGHT-HAND |
| MAXIMUM OPERATING TEMP AEHZ | SINGLE RESPONSE FAHRENHEIT 260.0 |
| END ITEM IDENTIFICATION AGAV | C-17A AIRCRAFT |
| CONNECTION STYLE AHNC | — |
| VALVE OPERATION METHOD AQLR | AUTOMATIC |
| CONNECTION TYPE AWLS | ALL ENDS THREADED EXTERNAL BOSS |
| NOMINAL THREAD SIZE CQJX | SECOND END INCHES 0.500 |
| NOMINAL THREAD SIZE CQJX | FIRST END INCHES 0.562 |
| OPERATING PRESSURE CQQF | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 450.0 |
| SPECIAL FEATURES FEAT | CLEANED IAW MIL-STD-1359 AND T.O. 00-25-203, CLASS 300,00 MIL-STD-1359 |
| MEDIA FOR WHICH DESIGNED MEDA | SINGLE RESPONSE OXYGEN, GASEOUS |
| STYLE DESIGNATOR STYL | — |
| THREAD SERIES DESIGNATOR THSD | ALL ENDS 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 |
|---|---|---|
| 0111420300 | 83533 | ESSEX INDUSTRIES INC DIV MANUFACTURING DIVISION |
| 0111420300-1 | 83533 | ESSEX INDUSTRIES INC DIV MANUFACTURING DIVISION |
| 17B1N8013 | 88277 | THE BOEING COMPANY |
| 17B1N8013-1 | 88277 | THE BOEING COMPANY |
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
—
Sep 8, 2026
Last purchased
1 · 1.0/yr
Purchase records
$6,489
Total demand
$6,489
Latest award total
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.
| Action date | Award # | Recipient | Agency | Obligation |
|---|---|---|---|---|
| Sep 8, 2026 | SPE7M026V3191 ↗ | ESSEX INDUSTRIES INC DIV MANUFACTURING DIVISION | — | $6,489 |
Demand history
Who wins this item
Does one supplier win this every time, and are the winners on the listed-source list? One dot per award.
- Award in the last 2 years
- Older award
ESSEX INDUSTRIES INC DIV MANUFACTURING DIVISION
last award Sep 2026
THE BOEING COMPANY
no award yet
no awards on record
Listed source ESSEX INDUSTRIES INC DIV MANUFACTURING DIVISION won the only award on record.
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 as of Oct 27, 2026.
- Contract action totals: USAspending, context only.
- Data last refreshed: 2026-10-24.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,CHECK." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-391-6364/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-391-6364/