The Seat,valve, cataloged under National Stock Number 4810-01-121-8681, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Hunt Valve Company, Inc.. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-121-8681 |
| Primary Part Number | ASI-B-12251-0600-8 |
| Item Name | Seat,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Hunt Valve Company, Inc. |
| Status | ACTIVE |
| Body Outside Diameter | 6.473 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Body Inside Diameter | 5.752 INCHES NOMINAL IN |
| Material | NICKEL ALLOY OVERALL |
| Seating Surface Shape | FLAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| ASI-B-12251-0000 PT 8 6IN | Hunt Valve Company, Inc. (USA) |
| ASI-B-12251-0600-8 PRIMARY | Hunt Valve Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| ASI-B-12251-0000 PT 8 6IN | 5/9 Secondary reference Pima Valve, Llc |
| ASI-B-12251-0600-8 | 3/9 Design control — primary reference Pima Valve, Llc |
| ASI-B-12251-0000 | D/9 Drawing number reference only Pima Valve, Llc |
NSN 4810-01-121-8681 is a Seat,valve, manufactured by Hunt Valve Company, Inc., classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-121-8681 has 2 manufacturer part numbers on file: ASI-B-12251-0000 PT 8 6IN (Hunt Valve Company, Inc.), ASI-B-12251-0600-8 (Hunt Valve Company, Inc.).
Key specifications for ASI-B-12251-0600-8: Overall Height: 0.456 INCHES NOMINAL IN; Body Outside Diameter: 6.473 INCHES NOMINAL IN; Style Designator: PLAIN; Body Inside Diameter: 5.752 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.