The Key,machine, cataloged under National Stock Number 5315-01-135-3658, 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 14 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5315-01-135-3658 |
| Primary Part Number | A51H20647-13 |
| Item Name | Key,machine |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| First Flat Length | 0.250 INCHES NOMINAL IN |
| Mounting Hole Type and Quantity | 2 PLAIN AND 1 THREADED-COUNTERSUNK |
| Starting Edge Shape | STRAIGHT |
| Style Designator | STEPPED |
| Material Document and Classification | AMS 5659 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Mounting Hole Diameter | 0.044 INCHES MAXIMUM AND 0.215 INCHES MAXIMUM IN |
| Distance From Mounting Hole Center to End | 0.120 INCHES MAXIMUM AND 0.453 INCHES MAXIMUM IN |
| Mounting Hole Thread Class | 3B |
| Mounting Hole Nominal Thread Size | 0.190 INCHES IN |
| Mounting Hole Depth | 0.188 INCHES MAXIMUM IN |
| Countersink Angle | 120.0 DEGREES NOMINAL |
| Material | STEEL COMP XM-12 OVERALL |
| Flat Height | 0.093 INCHES NOMINAL IN |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| A51H20647-13 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51H20647-13 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| A51H20647-13 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation |
NSN 5315-01-135-3658 is a Key,machine, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-135-3658 has 1 manufacturer part number on file: A51H20647-13 (Northrop Grumman Systems Corporation).
Key specifications for A51H20647-13: Overall Height: 0.871 INCHES MINIMUM AND 0.873 INCHES MAXIMUM IN; First Flat Length: 0.250 INCHES NOMINAL IN; Mounting Hole Type and Quantity: 2 PLAIN AND 1 THREADED-COUNTERSUNK; Starting Edge Shape: STRAIGHT. 14 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.