The Key,machine, cataloged under National Stock Number 5315-00-019-9201, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5315-00-019-9201 |
| Primary Part Number | 52C231-1 |
| Item Name | Key,machine |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba |
| Status | ACTIVE |
| Mounting Hole Type and Quantity | 2 THREADED |
| Starting Edge Shape | CHAMFERED |
| Style Designator | PLAIN |
| Mounting Hole Thread Class | 2B |
| Key Chamfer Length | 0.187 INCHES NOMINAL IN |
| Mounting Hole Nominal Thread Size | 0.500 INCHES IN |
| Mounting Hole Thread Quantity Per Inch | 12 |
| Material | STEEL OVERALL |
| Mounting Hole Thread Series Designator | UNS |
| 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 |
|---|---|
| 52C231-1 | Marshall of Cambridge Aerospace Limited (GBR) |
| 52C231-1 | Defence Liaison Services Pty Ltd (AUS) |
| 52C231-1 PRIMARY | Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba (USA) |
| Reference | Meaning |
|---|---|
| 5315PL0698732 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 52C231-1 | 5/9 Secondary reference Bliss E W Co Gulf and Western Mfg Co Sub of Gulf and Western Industries |
NSN 5315-00-019-9201 is a Key,machine, manufactured by Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-00-019-9201 has 3 manufacturer part numbers on file: 52C231-1 (Marshall of Cambridge Aerospace Limited), 52C231-1 (Defence Liaison Services Pty Ltd), 52C231-1 (Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba).
Key specifications for 52C231-1: Overall Height: 0.750 INCHES NOMINAL IN; Mounting Hole Type and Quantity: 2 THREADED; Starting Edge Shape: CHAMFERED; Style Designator: PLAIN. 9 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.