PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

76639Screw,machine

Cae Usa Inc. · NSN 5305-00-852-5209 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-852-5209 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-852-5209. Primary manufacturer part number: 76639.
Features
  • Screw,machine — FSC 5305
  • Screw Material Document and Classification: AMS 5640 ASSN STD ALL MATERIAL RESPONSES
  • Head Diameter: 0.179 INCHES NOMINAL IN
  • Thread Series Designator: UNF
  • Thread Direction: RIGHT-HAND
  • Thread Class: 3A A
  • Screw Material: STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X
  • Fastener Length: 0.625 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-852-5209, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Cae Usa Inc.. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-852-5209
Primary Part Number76639
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerCae Usa Inc.
StatusACTIVE
Screw Material Document and ClassificationAMS 5640 ASSN STD ALL MATERIAL RESPONSES
Head Diameter0.179 INCHES NOMINAL IN
Thread Series DesignatorUNF
Thread DirectionRIGHT-HAND
Thread Class3A A
Screw MaterialSTEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X
Fastener Length0.625 INCHES NOMINAL IN
Hardness Rating90.7 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM
Thread Length0.625 INCHES MAXIMUM IN
Head StyleFLAT CHAMFER
Screw Surface TreatmentPASSIVATE
Nominal Thread Diameter0.112 INCHES IN
Internal Drive StyleSLOT
Head Height0.078 INCHES NOMINAL IN
Thread Quantity Per Inch48
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4320-00-066-2202 INTERCHANGEABLE
Ring,lantern
Cross-Reference Index
Part NumberManufacturer
76639 PRIMARY Cae Usa Inc. (USA)
76639 Raytheon Technical Services Company (USA)
Related Parts
4320-00-066-2202INTERCHANGEABLE
RING,LANTERN

Frequently Asked Questions

What is NSN 5305-00-852-5209?

NSN 5305-00-852-5209 is a Screw,machine, manufactured by Cae Usa Inc., classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-852-5209?

NSN 5305-00-852-5209 has 2 cross-referenced part numbers: 76639 (Cae Usa Inc.), 76639 (Raytheon Technical Services Company).

What NSN replaces 5305-00-852-5209?

There is 1 known substitute for 5305-00-852-5209: 4320-00-066-2202. Verify interchangeability with system specifications before substitution.

What are the specifications of 76639?

Key specifications for 76639: Screw Material Document and Classification: AMS 5640 ASSN STD ALL MATERIAL RESPONSES; Head Diameter: 0.179 INCHES NOMINAL IN; Thread Series Designator: UNF; Thread Direction: RIGHT-HAND. 15 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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