The Pin,grooved,headed, cataloged under National Stock Number 5315-01-121-1857, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Apex Manufacturing Company, Inc. Dba Apex Manufacturing Co. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-121-1857 |
| Primary Part Number | 74A410578-2001 |
| Item Name | Pin,grooved,headed |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Apex Manufacturing Company, Inc. Dba Apex Manufacturing Co |
| Status | ACTIVE |
| Surface Finish | 16.0 MICROINCHES OUTSIDE DIAMETER |
| Surface Finish | 32.0 MICROINCHES UNDERCUT |
| Undercut Diameter | 0.720 INCHES NOMINAL IN |
| First End Countersink Diameter | 0.440 INCHES NOMINAL IN |
| Distance From Centerline to Flat | 0.485 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN |
| Under Head Length | 1.267 INCHES MINIMUM AND 1.272 INCHES MAXIMUM IN |
| First End Style | COUNTERSUNK |
| Pin Head Diameter | 1.125 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-8844,CL 3 COND E2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.748 INCHES MINIMUM AND 0.749 INCHES MAXIMUM IN |
| First End Countersink Angle | 60.0 DEGREES NOMINAL |
| Head Style | DEE CHAMFER |
| Height | 0.125 INCHES NOMINAL IN |
| Undercut Radius | 0.050 INCHES NOMINAL IN |
| Material | STEEL COMP 300M OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 74A410578-2001 | Apex Manufacturing Company, Inc. Dba Apex Manufacturing Co (USA) |
| 74A410578-2001 | Safran Landing Systems Canada Inc. (CAN) |
| Reference | Meaning |
|---|---|
| 10122928 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 74A410578-2001 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| 74A410578-2001 | 5/9 Secondary reference Cm Manufacturing Inc Dba Cm Manufacturing Inc |
| 74A410578-2001 | C/1 Advisory reference — outside the item-of-supply concept Goodrich Corporation Div Advanced Structures Landing Systems |
| 74A410578-2001 | 3/9 Design control — primary reference Circor Aerospace, Inc. Dba Circor Aerospace Machining Center |
| 74A410578-2001 | 5/9 Secondary reference Israel Aerospace Industries Ltd. Shl - Aero Assemblies Division |
| 74A410578-2001 | 5/9 Secondary reference Nassau Tool Works, Inc |
| 74A410578-2001 | 5/9 Secondary reference All Tools, Inc. Dba E2 Precision Products |
| 74A410578-2001 | 5/9 Secondary reference Heroux-Devtek Inc |
NSN 5315-01-121-1857 is a Pin,grooved,headed, manufactured by Apex Manufacturing Company, Inc. Dba Apex Manufacturing Co, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-121-1857 has 2 manufacturer part numbers on file: 74A410578-2001 (Apex Manufacturing Company, Inc. Dba Apex Manufacturing Co), 74A410578-2001 (Safran Landing Systems Canada Inc.).
Key specifications for 74A410578-2001: Surface Finish: 16.0 MICROINCHES OUTSIDE DIAMETER; Surface Finish: 32.0 MICROINCHES UNDERCUT; Undercut Diameter: 0.720 INCHES NOMINAL IN; First End Countersink Diameter: 0.440 INCHES NOMINAL IN. 15 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.