The Pin,grooved,headed, cataloged under National Stock Number 5315-00-103-0859, 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 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5315-00-103-0859 |
| Primary Part Number | 52B1144-2 |
| Item Name | Pin,grooved,headed |
| 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 |
| Surface Finish | 125.0 MICROINCHES HEAD OUTSIDE DIAMETER |
| Surface Finish | 63.0 MICROINCHES OUTSIDE DIAMETER |
| Surface Finish | 125.0 MICROINCHES UNDERCUT |
| Width Across Flats | 1.500 INCHES NOMINAL IN |
| Undercut Diameter | 0.063 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Under Head Length | 3.000 INCHES NOMINAL IN |
| First End Style | CHAMFERED |
| Hardness Rating | 41.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | GROOVE |
| Pin Head Diameter | 1.750 INCHES NOMINAL IN |
| Diameter | 0.870 INCHES NOMINAL IN |
| Effective Length | 2.250 INCHES NOMINAL IN |
| Head Style | ROUND W/WRENCH FLATS |
| Height | 0.375 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL COMP 4340 OR STEEL COMP 4140 OVERALL |
| 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 |
|---|---|
| 52B1144-2 | Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba (USA) |
| Reference | Meaning |
|---|---|
| 52B1144-2 | 5/9 Secondary reference Bliss E W Co Gulf and Western Mfg Co Sub of Gulf and Western Industries |
| 7545534-05 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5315-00-103-0859 is a Pin,grooved,headed, 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 5315-00-103-0859 has 1 manufacturer part number on file: 52B1144-2 (Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba).
Key specifications for 52B1144-2: Surface Finish: 125.0 MICROINCHES HEAD OUTSIDE DIAMETER; Surface Finish: 63.0 MICROINCHES OUTSIDE DIAMETER; Surface Finish: 125.0 MICROINCHES UNDERCUT; Width Across Flats: 1.500 INCHES NOMINAL IN. 17 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.