NSN 5315-00-771-8573 · NIIN 007718573 · Part number 4H9743
Caterpillar Inc Div Caterpillar Defense · FSC 5315 — Nails, Machine Keys, and Pins · FSG 53 — Hardware and Abrasives · CAGE 11083
Government record, cited
NSN 5315-00-771-8573 — this item is cataloged by the U.S. Government under National Stock Number 5315-00-771-8573. Manufacturer of record part number: 4H9743.
Also searched as5315-00-771-8573 ·
5315007718573 ·
NIIN 007718573 ·
00-771-8573 ·
FSC 5315 Nails, Machine Keys, and Pins · CAGE 11083 · 4H9743
Material Document and Classification: QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Circle Diameter: 0.750 INCHES NOMINAL IN
Key Chamfer Length: 0.042 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
Key Height: 0.313 INCHES NOMINAL IN
Identification
NSN: 5315-00-771-8573
NIIN: 007718573
FSC: 5315 — Nails, Machine Keys, and Pins
FSG: 53 — Hardware and Abrasives
Primary part number: 4H9743
Manufacturer: Caterpillar Inc Div Caterpillar Defense
General Description
The Key,woodruff, cataloged under National Stock Number 5315-00-771-8573, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 9 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5315-00-771-8573
Primary Part Number
4H9743
Item Name
Key,woodruff
FSC / FSG
5315 / 53 — Nails, Machine Keys, and Pins
Manufacturer
Caterpillar Inc Div Caterpillar Defense
Status
ACTIVE
Key Chamfer Angle
45.0 DEGREES NOMINAL
Starting Edge Shape
CHAMFERED
Style Designator
ROUND BOTTOM
Material Document and Classification
QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
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 5315-00-771-8573?
NSN 5315-00-771-8573 is a Key,woodruff, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
What part numbers are listed for NSN 5315-00-771-8573?
NSN 5315-00-771-8573 has 1 manufacturer part number on file: 4H9743 (Caterpillar Inc Div Caterpillar Defense).
What are the specifications of 4H9743?
Key specifications for 4H9743: Key Chamfer Angle: 45.0 DEGREES NOMINAL; Starting Edge Shape: CHAMFERED; Style Designator: ROUND BOTTOM; Material Document and Classification: QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 9 specifications are documented in the U.S. Government catalog.
Is NSN 5315-00-771-8573 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.