The Holder Assembly,wrench, cataloged under National Stock Number 5120-01-059-2331, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-059-2331 |
| Primary Part Number | PWA51977-9 |
| Item Name | Holder Assembly,wrench |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| General Characteristics Item Description | ITEM CONSISTS OF 1 EA DOWEL PIN 1/8 IN. DIA. THRU X 3/4 IN. LENGTH MATLSTEEL P/N PWA51977-3,1 EA HOLDER 3/16IN. DIA. MATL STEEL HARDEN TO RC 38-42P/N PWA51977-6,1 EA WRENCH ASSEMBLY 1IN. DIA. X 2 IN. LENGTH MATL STEEL AISI 4140-4150 HARDEN TO RC 28-36 P/N PWA51977-7,1 EA HEX NUT MATL STEEL 1/2-13 THREAD TACK WELD 4 PLACES P/N PWA51977-8,BLACK OXIDE PER AMS 2485 IN |
| 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 |
|---|---|
| PWA51977-9 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 5120-01-059-2331 is a Holder Assembly,wrench, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-059-2331 has 1 manufacturer part number on file: PWA51977-9 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for PWA51977-9: General Characteristics Item Description: ITEM CONSISTS OF 1 EA DOWEL PIN 1/8 IN. DIA. THRU X 3/4 IN. LENGTH MATLSTEEL P/N PWA51977-3,1 EA HOLDER 3/16IN. DIA. MATL STEEL HARDEN TO RC 38-42P/N PWA51977-6,1 EA WRENCH ASSEMBLY 1IN. DIA. X 2 IN. LENGTH MATL STEEL AISI 4140-4150 HARDEN TO RC 28-36 P/N PWA51977-7,1 EA HEX NUT MATL STEEL 1/2-13 THREAD TACK WELD 4 PLACES P/N PWA51977-8,BLACK OXIDE PER AMS 2485 IN; End Item Identification: F100-PW-100 ENG,WRENCH P/N PWA51977. 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.