The Bar,nut, cataloged under National Stock Number 5340-01-253-9929, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. 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 | 5340-01-253-9929 |
| Primary Part Number | 63B304499P1 |
| Item Name | Bar,nut |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL CARBON STEEL PLATE PER QQ-S-634,CFCQ,0.25 IN. THICK,FINISH CADMIUM PLATE PER QQ-P-416,TYPE 11,CLASS 3,LENGTH IS 2.875 IN. LG,WIDTH IS 0.400 IN.,3 HOLES 10-32-2B-UNF TAP THRU,DISTANCE BETWEEN HOLES IS OUTSIDE HOLES IS 2.375 IN. DISTANCE BETWEEN INSIDE HOLE AND OUTSIDE LONGEST IS 1.750 IN. DISTANCE FROM ENDS TO HOLES IS 0.250 IN. 2 PLACES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 63B304499P1 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
NSN 5340-01-253-9929 is a Bar,nut, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-253-9929 has 1 manufacturer part number on file: 63B304499P1 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Key specifications for 63B304499P1: General Characteristics Item Description: MATERIAL CARBON STEEL PLATE PER QQ-S-634,CFCQ,0.25 IN. THICK,FINISH CADMIUM PLATE PER QQ-P-416,TYPE 11,CLASS 3,LENGTH IS 2.875 IN. LG,WIDTH IS 0.400 IN.,3 HOLES 10-32-2B-UNF TAP THRU,DISTANCE BETWEEN HOLES IS OUTSIDE HOLES IS 2.375 IN. DISTANCE BETWEEN INSIDE HOLE AND OUTSIDE LONGEST IS 1.750 IN. DISTANCE FROM ENDS TO HOLES IS 0.250 IN. 2 PLACES IN. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.