Acquisition method (AMC)
3
FSC 4820 × VALVE,REGULATING,FLUID PRESSURE
VALVE,REGULATING,FLUID PRESSURE
4820-01-509-3133 FSC 4820
NSN 4820-01-509-3133 (also written 4820015093133; NIIN 01-509-3133) is a valve, regulating, fluid pressure in Federal Supply Class 4820, Valves, Nonpowered. 6 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Oct 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 |
|---|---|
| BODY STYLE AAQL | — |
| FURNISHED ITEMS ABFF | ADAPTER AND EXTERNAL SENSING LINE |
| FIRST END CONNECTION TYPE ACKM | PLAIN FACE FLANGE |
| SECOND END RELATIONSHIP WITH FIRST END ACLR | IDENTICAL |
| FLOW CONTROL DEVICE ADQU | DISK, FLAT |
| END CONNECTION QUANTITY ADQZ | 2 |
| RENEWABLE SEAT RING TYPE ADZH | WELDED |
| OUTLET PRESSURE RANGE AEVA | POUNDS PER SQUARE INCH (PSI) 33.0 TO 55.0 |
| REGULATION TYPE AEVN | AUTOMATIC SINGLE STAGE |
| VALVE STEM DESIGN AEVQ | SINGLE SEAT |
| VALVE LOADING METHOD AEVR | SPRING |
| MAXIMUM INLET PRESSURE RATING AEVZ | POUNDS PER SQUARE INCH (PSI) 218.0 |
| OUTLET PRESSURE SETTING AEWA | POUNDS PER SQUARE INCH (PSI) 33.0 |
| OUTLET PRESSURE ACCURACY RATING AEWB | POUNDS PER SQUARE INCH (PSI) 13.000 |
| END ITEM IDENTIFICATION AGAV | CVN 69 AND CVN 77 |
| END CONNECTION SPEC/STD BZRS | MIL-PRF-20042 250 LB CLASS MIL-PRF-20042 |
| VALVE SIZE CCFG | INCHES 4.000 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY CXCY | 4 INCH REDUCING VALVE FOR FIRE MAIN |
| SPECIAL FEATURES FEAT | THIS VALVE HAS MINIMUM GPM FLOW 1100 REQUIRED/1200 ACTUAL; MAXIMUM 1600 REQUIRED/1370 ACTUAL. SIMILAR TO 4820-01-198-2855 WHICH HAS A DIFFERENT STEM AND FLOW RATE OF 850 GPM |
| MATERIAL MATT | SEAT NICKEL ALLOY R-405 |
| MATERIAL MATT | STEM NICKEL ALLOY |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | SEAT FED SPEC SINGLE MATERIAL RESPONSE QQ-N-281, CLASS B QQ-N-281 |
| MEDIA FOR WHICH DESIGNED MEDA | LOCATION NOT OTHERWISE SPECIFIED WATER, SALT |
| PROPRIETARY CHARACTERISTICS PRPY | PACS |
| SPECIFICATION/STANDARD DATA ZZZK | GOVERNMENT SPECIFICATION 81349--IL-V-2042 TO SUERSEDED TO AND PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION 81346-AST- 1370-92 |
| NONDEFINITIVE SPEC/STD DATA ZZZT | TYPE E II |
| DEPARTURE FROM CITED DESIGNATOR ZZZX | MODIFIED FOR 250 POUND SERVICE |
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 |
|---|---|---|
| 40737-2 ASSY 40737-202 | 55378 | TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC |
| 40737-2 CDS 40740 | 55378 | TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC |
| 40737-202 | 55378 | TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC |
| ASTM 1370 2DF2B MODIFIED | 81346 | AMERICAN SOCIETY FOR TESTING AND MATERIALS DBA ASTM INTERNATIONAL |
| ASTM 1370-92 | 81346 | AMERICAN SOCIETY FOR TESTING AND MATERIALS DBA ASTM INTERNATIONAL |
| MIL-V-2042 MODIFIED | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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
$75,485.00
Purchases
1
Total spend
$75,485
Oct 6, 2026
Last purchased
2 · 2.0/yr
Purchase records
$150,970
Total demand
$75,485.00
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Oct 6, 2026 | 1 | $75,485.00 | $75,485 | PHOENIX TRADING INC. (4LF36) | 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 |
|---|---|---|---|---|
| Oct 6, 2026 | SPE7MC27V0068 ↗ | PHOENIX TRADING INC. | — | $75,485 |
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
PHOENIX TRADING INC.
last award Oct 2026
AMERICAN SOCIETY FOR TESTING AND MATERIALS DBA ASTM INTERNATIONAL
no award yet
no awards on record
Listed source MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
no award yet
no awards on record
Listed source TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC
no award yet
no awards on record
Listed source PHOENIX TRADING INC. won the only award on record. PHOENIX TRADING INC. won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7MC-26-T-298B | Sep 25, 2026 | Oct 5, 2026 | 1 | 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: 2026-10-08.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,REGULATING,FLUID PRESSURE." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-509-3133/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-509-3133/