The Retainer,disk,valve, cataloged under National Stock Number 4810-01-280-4940, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Magnatrol Valve Corp Div Clark-Cooper. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-280-4940 |
| Primary Part Number | 374-11A |
| Item Name | Retainer,disk,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Magnatrol Valve Corp Div Clark-Cooper |
| Status | ACTIVE |
| Outside Diameter | 0.875 INCHES NOMINAL IN |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE |
| Material | NICKEL ALLOY |
| 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 |
|---|---|
| 374-11A | Magnatrol Valve Corp Div Clark-Cooper (USA) |
| Reference | Meaning |
|---|---|
| 374.11A | 5/9 Secondary reference Magnatrol Valve Corp Div Clark-Cooper |
| 374.11 | 3/9 Design control — primary reference Magnatrol Valve Corp Div Clark-Cooper |
NSN 4810-01-280-4940 is a Retainer,disk,valve, manufactured by Magnatrol Valve Corp Div Clark-Cooper, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-280-4940 has 1 manufacturer part number on file: 374-11A (Magnatrol Valve Corp Div Clark-Cooper).
2 possible matches (shared part number, not a government interchangeability claim): 5305-01-397-3467, 5310-01-619-2126. Verify interchangeability with system specifications before substitution.
Key specifications for 374-11A: Outside Diameter: 0.875 INCHES NOMINAL IN; Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE; Material: NICKEL ALLOY. 3 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.