The Pin,flange,pilot Swing Out Step, cataloged under National Stock Number 5315-00-520-1250, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-00-520-1250 |
| Primary Part Number | A51B11591-11 |
| Item Name | Pin,flange,pilot Swing Out Step |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,CRES,AMS5659,RC38-C45,2.380 IN. LG,0.498 IN. MIN,0.499 IN. MAX DIA SHANK OVATE SHAPE FLANGE END,SHANK DRILLED FROM FLANGE END 0.250 IN. DIA,1.750 IN. D 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 |
|---|---|
| A51B11591-11 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51B11591-11 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| A51B11591-11 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
NSN 5315-00-520-1250 is a Pin,flange,pilot Swing Out Step, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-00-520-1250 has 1 manufacturer part number on file: A51B11591-11 (Northrop Grumman Systems Corporation).
Key specifications for A51B11591-11: General Characteristics Item Description: STEEL,CRES,AMS5659,RC38-C45,2.380 IN. LG,0.498 IN. MIN,0.499 IN. MAX DIA SHANK OVATE SHAPE FLANGE END,SHANK DRILLED FROM FLANGE END 0.250 IN. DIA,1.750 IN. D IN. 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.