NSN catalog · 90,963 partsCatalog › Valves › FSC 4820 › 4820-00-257-0984
Check Valve P/N 10948154
In stock — 687 on our U.S. shelfNSN 4820-00-257-0984 4820002570984 NIIN 002570984
SECO Parts has 687 in stock of NSN 4820-00-257-0984 — Check Valve — on our own shelf in Augusta, GA: a stocking supplier, not a broker. Government catalog (FEDLOG) price: $127.14 per each — a public reference, not our price. We quote each request, usually the same business day, and surplus parts often quote below or above it.
One part, one step — answered within one business day. Several parts? and send them together.
- Ships in 1–3 business days from Augusta, GA
- Certificate of Conformance on request
- PO, GPC & major cards
- $50 minimum order — smaller requests still get a quote
- 30-day returns · terms
- FLIS item name
- VALVE,CHECK
- SECO description
- VALVE, CHECK AIRPACK
- Federal supply class
- FSC 4820 — Valves, Nonpowered
Availability & condition
| Condition | Code | Qty on shelf |
|---|---|---|
| New | NE | 684 |
| New Surplus | NS | 3 |
| Total | 687 |
Quantities are live from SECO's inventory system, not estimated.
Also known as:
4820-00-257-0984 002570984 10948154
Get a quote
Build a list across as many parts as you need, send it once, get one quote back — answered within one business day, usually the same day. POs and GPC welcome. $50 minimum order.
More to tell us? Need-by date, ship-to, your own RFQ document
Specifications
- Thread direction
- All Ends Right-Hand
- Material
- Body Steel Comp 1110 or Steel Comp 1116
- Mounting position
- Horizontal or Vertical
- Nominal thread size
- First End Inches 0.375
- Material
- Flow Control Device Rubber Synthetic
- Material document and classification
- Body Fed STD 1ST Material Response Fed STD 66, or Fed Spec 2ND Material Response QQ-S-637 or Fed Spec 3RD Material Response QQ-S-637 or Fed STD 4TH Material Response Fed STD 66
- Material document and classification
- Flow Control Device MIL STD 1ST Material Response -IL-STD-417,Tye S,Class SB,Grade 610 or Assn STD 2ND Material Response SAE,Grade SB610
- Material document and classification
- Seat Fed STD 1ST Material Response Fed STD 66 or Fed Spec 2ND Material Response QQ-S-637 or Fed Spec 3RD Material Response QQ-S-637 or Fed STD 4TH Material Response Fed STD 66
- Connection type
- First End Threaded External Pipe
- Material
- Seat Steel Comp 1110 or Steel Comp 1116
- Surface treatment
- Cadmium or Zinc
- Connection type
- Second End Threaded Internal Pipe
- Flow control device
- Ball
- Disk loading method
- Spring
- Valve operation method
- Automatic
- Nominal thread size
- Second End Inches 0.500
- Thread series designator
- All Ends NPTF
From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.
Cross-reference part numbers
10948154
Shown for identification only. SECO can quote against any of these numbers.
Logistics data
| Source of supply | SMS DLA Land and Maritime, Columbus, Ohio |
| Acquisition advice code | J Not stocked, centrally procured — the government does not stock this item; it is procured only when a requisition arrives. SECO has 687 on the shelf |
| Unit of issue | EA each |
| Demilitarization code | A Demilitarization not required — non-munitions-list item |
| Controlled inventory code | U Unclassified |
| Hazardous material indicator | N No hazardous material |
Source: public FLIS/PUB LOG cataloging data.
Why buy from SECO
These quantities sit on our own shelves — we are a stocking supplier, not a broker sourcing after you order. Condition-coded stock, formal quotes with NSN/PN on the paperwork, POs and GPC welcome, fast U.S. shipping.
In business since 1951 · 30,000+ contracts completed · about SECO & our policies · more questions answered
FAQ
What is NSN 4820-00-257-0984?
NSN 4820-00-257-0984 (4820002570984) — Check Valve: SECO Parts has 687 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for check valve in federal supply class 4820 (Valves, Nonpowered).
Is NSN 4820-00-257-0984 available?
SECO Parts has 687 in stock in Augusta, GA — order or request a quote below.
How much does NSN 4820-00-257-0984 cost?
The government catalog (FEDLOG) lists NSN 4820-00-257-0984 at $127.14 per each. That is a public reference, not SECO's price: SECO quotes each request, usually the same business day, and surplus parts often quote below or above it.
What part numbers cross-reference to NSN 4820-00-257-0984?
Part numbers that cross-reference this NSN include 10948154. SECO can quote against any of them.
Same item, other stock numbers
Other NSNs the federal catalog names VALVE,CHECK. Same name is not the same part: check the part numbers.