Mounting Hole Type and Quantity: 2 UNTHREADED-COUNTERSUNK
Starting Edge Shape: STRAIGHT
Style Designator: PLAIN
Material Document and Classification: MIL-N-894 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Mounting Hole Diameter: 0.203 INCHES NOMINAL IN
Distance From Mounting Hole Center to End: 0.500 INCHES NOMINAL IN
Mounting Hole Depth: 0.500 INCHES NOMINAL IN
Identification
NSN: 5315-00-271-4203
NIIN: 002714203
FSC: 5315 — Nails, Machine Keys, and Pins
FSG: 53 — Hardware and Abrasives
General Description
The Key,machine, cataloged under National Stock Number 5315-00-271-4203, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5315-00-271-4203
Item Name
Key,machine
FSC / FSG
5315 / 53 — Nails, Machine Keys, and Pins
Status
ACTIVE
Mounting Hole Type and Quantity
2 UNTHREADED-COUNTERSUNK
Starting Edge Shape
STRAIGHT
Style Designator
PLAIN
Material Document and Classification
MIL-N-894 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Mounting Hole Diameter
0.203 INCHES NOMINAL IN
Distance From Mounting Hole Center to End
0.500 INCHES NOMINAL IN
Mounting Hole Depth
0.500 INCHES NOMINAL IN
Countersink Angle
82.0 DEGREES NOMINAL
Material
NICKEL ALLOY 400 OVERALL
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
745476
3/9Design control — primary reference
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
No interchangeability data on file.
Other items in FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037
5315-00-000-1037 · Item name not on file
5315-00-000-1067
5315-00-000-1067 · Item name not on file
5315-00-000-1245
5315-00-000-1245 · Item name not on file
5315-00-000-1372
5315-00-000-1372 · Item name not on file
5315-00-000-1412
5315-00-000-1412 · Item name not on file
5315-00-001-1571
PIN
5315-00-001-1572
PIN,LINKAGE
5315-00-001-1602
5315-00-001-1602 · Item name not on file
Frequently Asked Questions
What is NSN 5315-00-271-4203?
NSN 5315-00-271-4203 is a Key,machine, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
What are the specifications of 5315-00-271-4203?
Key specifications for 5315-00-271-4203: Overall Height: 0.500 INCHES NOMINAL IN; Mounting Hole Type and Quantity: 2 UNTHREADED-COUNTERSUNK; Starting Edge Shape: STRAIGHT; Style Designator: PLAIN. 9 specifications are documented in the U.S. Government catalog.
Is NSN 5315-00-271-4203 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.