The Ratchet Head,socket Wrench Handl, cataloged under National Stock Number 5120-01-587-5735, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-587-5735 |
| Primary Part Number | R-37-1 |
| Item Name | Ratchet Head,socket Wrench Handl |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| R-37-1 PRIMARY | Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc (USA) |
| Reference | Meaning |
|---|---|
| R2-37 | 5/9 Secondary reference Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc |
NSN 5120-01-587-5735 is a Ratchet Head,socket Wrench Handl, manufactured by Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-587-5735 has 1 manufacturer part number on file: R-37-1 (Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 3120-01-719-0454. Verify interchangeability with system specifications before substitution.
Key specifications for R-37-1: Special Features: TOOL CONFIGURATION IS 3/8" SOCKET, FLUSH; Part Name Assigned by Controlling Agency: STRAIGHT RATCHET HEAD HANDLE. 0 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.