The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-318-2133, 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 Support Services Corp. Government technical data includes 20 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5315-01-318-2133 |
| Primary Part Number | 121B308H01 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Northrop Grumman Support Services Corp |
| Status | ACTIVE |
| Shank Diameter | 0.312 INCHES NOMINAL IN |
| First End Taper Length | 0.250 INCHES NOMINAL IN |
| First End Location | CHAMFERED END |
| Hole Arrangement Style | DRILLED SHANK THREADED PIN |
| Thread Length | 0.620 INCHES NOMINAL IN |
| First End Style | CHAMFERED |
| First Hole Diameter | 0.123 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Shank Length | 0.750 INCHES NOMINAL IN |
| Style Designator | SHOULDER |
| First End Taper Angle | 20.0 DEGREES NOMINAL |
| Second End Relationship with First End | NOT IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.312 INCHES IN |
| Shoulder Diameter | 0.375 INCHES NOMINAL IN |
| Second End Style | SQUARE |
| Thread Class | 2A A |
| Material | STEEL COMP 630 OVERALL |
| Thread Series Designator | UNF |
| Distance From Centerline of Hole to End of Pin | 0.630 INCHES NOMINAL 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 |
|---|---|
| 121B308H01 PRIMARY | Northrop Grumman Support Services Corp (USA) |
| Reference | Meaning |
|---|---|
| 121B308H01 | 3/9 Design control — primary reference U.S. Government activity |
| 121B308H01 | 5/9 Secondary reference Micro Machining, Inc |
NSN 5315-01-318-2133 is a Pin,shoulder,headless, manufactured by Northrop Grumman Support Services Corp, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-318-2133 has 1 manufacturer part number on file: 121B308H01 (Northrop Grumman Support Services Corp).
Key specifications for 121B308H01: Shank Diameter: 0.312 INCHES NOMINAL IN; First End Taper Length: 0.250 INCHES NOMINAL IN; First End Location: CHAMFERED END; Hole Arrangement Style: DRILLED SHANK THREADED PIN. 20 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.