Hardness Rating: 50.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM OVERALL
Starting Edge Shape: CHAMFERED
Style Designator: PLAIN
Material Document and Classification: MIL-S-5000 MIL SPEC ALL MATERIAL RESPONSES OVERALL
Key Chamfer Length: 0.030 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
Material: STEEL COMP E4340 OR STEEL COMP 4340 OVERALL
Identification
NSN: 5315-00-780-1816
NIIN: 007801816
FSC: 5315 — Nails, Machine Keys, and Pins
FSG: 53 — Hardware and Abrasives
General Description
The Key,machine, cataloged under National Stock Number 5315-00-780-1816, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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
5315-00-780-1816
Item Name
Key,machine
FSC / FSG
5315 / 53 — Nails, Machine Keys, and Pins
Status
ACTIVE
Key Chamfer Angle
45.0 DEGREES NOMINAL
Hardness Rating
50.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM OVERALL
Starting Edge Shape
CHAMFERED
Style Designator
PLAIN
Material Document and Classification
MIL-S-5000 MIL SPEC ALL MATERIAL RESPONSES OVERALL
Key Chamfer Length
0.030 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
Material
STEEL COMP E4340 OR STEEL COMP 4340 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
865954-1
3/2Design control — primary reference
U.S. Government activity
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 5315-00-780-1816?
NSN 5315-00-780-1816 is a Key,machine, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
What are the specifications of 5315-00-780-1816?
Key specifications for 5315-00-780-1816: Overall Height: 0.300 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN; Key Chamfer Angle: 45.0 DEGREES NOMINAL; Hardness Rating: 50.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM OVERALL; Starting Edge Shape: CHAMFERED. 7 specifications are documented in the U.S. Government catalog.
Is NSN 5315-00-780-1816 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.