The Key,piston, cataloged under National Stock Number 5315-01-195-9201, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5315-01-195-9201 |
| Primary Part Number | B-1633 PIECE 15 |
| Item Name | Key,piston |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Circor Naval Solutions Llc Dba Warren Pumps |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,ASTM A108,GRADE 1020 |
| 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-1633 PIECE 15 PRIMARY | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
| Reference | Meaning |
|---|---|
| B1633-1-15 | C/1 Advisory reference — outside the item-of-supply concept Circor Naval Solutions Llc Dba Warren Pumps |
| B-1633 | D/9 Drawing number reference only Circor Naval Solutions Llc Dba Warren Pumps |
NSN 5315-01-195-9201 is a Key,piston, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-195-9201 has 1 manufacturer part number on file: B-1633 PIECE 15 (Circor Naval Solutions Llc Dba Warren Pumps).
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-196-1224, 6130-01-606-3535. Verify interchangeability with system specifications before substitution.
Key specifications for B-1633 PIECE 15: General Characteristics Item Description: STEEL,ASTM A108,GRADE 1020; End Item Identification: WARREN PUMP INC PUMP MODEL NO. 525TS. 1 specification is 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.