Acquisition method (AMC)
3
FSC 4820 × SEAT,VALVE
SEAT,VALVE
4820-01-168-1949 FSC 4820
NSN 4820-01-168-1949 (also written 4820011681949; NIIN 01-168-1949) is a seat, valve in Federal Supply Class 4820, Valves, Nonpowered. 4 manufacturer part numbers from 1 supplier 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 to be bought directly from the actual manufacturer (AMC 3).
Suffix (AMSC)
C
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, 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 | 2A |
| THREAD LENGTH AASA | SINGLE THREADED PORTION INCHES NOMINAL 0.182 |
| BODY INSIDE DIAMETER ADAS | INCHES NOMINAL 0.625 |
| END ITEM IDENTIFICATION AGAV | TRAC REGULATOR 3/4"TRAC STYLE H SEA WATER PRESSURE REDUCING VALVE,PER MIL-V-2042 TYPE II 150 ;DWG 40398-9 MIL-V-2042 |
| THREAD QUANTITY PER INCH CMLP | 18 |
| NOMINAL THREAD SIZE CQJX | SINGLE THREADED PORTION INCHES 0.875 |
| SEATING SURFACE SHAPE CQKM | FLAT |
| SPECIAL FEATURES FEAT | 1.000 IN.OD |
| MATERIAL MATT | OVERALL NICKEL ALLOY |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | OVERALL ASSN STD ALL MATERIAL RESPONSES AST- A494 |
| STYLE DESIGNATOR STYL | — |
| THREAD SERIES DESIGNATOR THSD | SINGLE THREADED PORTION UNS |
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 |
|---|---|---|
| 40398-09 | 55378 | TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC |
| 40398-09 FIND 13 | 55378 | TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC |
| 930 | 55378 | TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC |
| 930-02 | 55378 | TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC |
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
$2,671.00
Purchases
1
Total spend
$58,762
Sep 9, 2026
Last purchased
2 · 2.0/yr
Purchase records
$117,524
Total demand
$2,671.00
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Sep 9, 2026 | 22 | $2,671.00 | $58,762 | HOOSIER INDUSTRIAL SUPPLY, INC (0RCD8) | Unknown | Source ↗ |
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 9, 2026 | SPE7MC26P3584 ↗ | HOOSIER INDUSTRIAL SUPPLY, INC | — | $58,762 |
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.
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
HOOSIER INDUSTRIAL SUPPLY, INC
last award Sep 2026
TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC
no award yet
no awards on record
Listed source HOOSIER INDUSTRIAL SUPPLY, INC won the only award on record. HOOSIER INDUSTRIAL SUPPLY, INC won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7MC-26-T-219U | Aug 21, 2026 | Sep 3, 2026 | 22 | Expired | 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 as of Oct 10, 2026.
- Contract action totals: USAspending, context only.
- Data last refreshed: 2026-10-24.
- Full methodology →
Cite this page
Citation
NSN Explorer. "SEAT,VALVE." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-168-1949/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-168-1949/