The Pin,spring, cataloged under National Stock Number 5315-00-816-1521, is classified within Federal Supply Class 5315 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5315-00-816-1521 |
| Primary Part Number | MS171728 |
| Item Name | Pin,spring |
| FSC / FSG | 5315 / 53 — No Item Name Available |
| Manufacturer | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| Status | CANCELLED |
| Style Designator | SLOTTED |
| Material | STEEL COMP 410 OVERALL |
| Material Document and Classification | AMS 5506 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Material Thickness | 0.077 INCHES NOMINAL IN |
| Diameter | 0.375 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MS171728 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| MS9048-308 3/8D IAX3-1/2 LG | Zf Industrieantriebe Witten Gmbh (DEU) |
| 42P11701-3560 | Naval Ordnance Standards (USA) |
| MS171728 | National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA) |
| MS9048-308 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 79-077-375-3500 | Harvard Industries Inc (USA) |
| 42P11701-3560 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 79-077-375-3500 | Esna, Llc (USA) |
| D52-077-375-3500 | Esna, Llc (USA) |
NSN 5315-00-816-1521 is a Pin,spring, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5315 (No Item Name Available). Status: cancelled.
NSN 5315-00-816-1521 has 9 cross-referenced part numbers: MS171728 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS9048-308 3/8D IAX3-1/2 LG (Zf Industrieantriebe Witten Gmbh), 42P11701-3560 (Naval Ordnance Standards), MS171728 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), MS9048-308 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 4 more.
There is 1 known substitute for 5315-00-816-1521: 5940-00-903-1332. Verify interchangeability with system specifications before substitution.
Key specifications for MS171728: Style Designator: SLOTTED; Material: STEEL COMP 410 OVERALL; Material Document and Classification: AMS 5506 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Material Thickness: 0.077 INCHES NOMINAL IN. 6 total characteristics are documented in the Federal Logistics Information System.
NSN 5315-00-816-1521 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.