The Lock,valve Spring Retainer, cataloged under National Stock Number 4310-01-346-6581, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is W.w. Grainger, Inc. Div Government Sales Division. Government technical data includes 2 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-01-346-6581 |
| Primary Part Number | B-23 |
| Item Name | Lock,valve Spring Retainer |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | W.w. Grainger, Inc. Div Government Sales Division |
| Status | ACTIVE |
| Thread Provision | THREADED |
| Thread Direction | RIGHT-HAND |
| 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 |
|---|---|
| B-23 PRIMARY | W.w. Grainger, Inc. Div Government Sales Division (USA) |
NSN 4310-01-346-6581 is a Lock,valve Spring Retainer, manufactured by W.w. Grainger, Inc. Div Government Sales Division, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-346-6581 has 1 manufacturer part number on file: B-23 (W.w. Grainger, Inc. Div Government Sales Division).
Key specifications for B-23: Thread Provision: THREADED; Thread Direction: RIGHT-HAND; End Item Identification: COMPRESSOR PUMP,DAYTON ELECTRIC MFG CO.,MODELS 2Z157,1Z943 AND 2Z203. 2 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.