PartsTable
Technical Data Sheet
Download PDF

8441665 — KEY,MACHINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

8441665: KEY,MACHINE.

The KEY,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OVERALL, flat_height: 1.750 INCHES NOMINAL IN, taper_length: 7.000 INCHES NOMINAL IN, overall_width: 1.687 INCHES NOMINAL IN, overall_height: 4.500 INCHES NOMINAL IN, overall_length: 8.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-994-9080, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
8441665
NSN: 5315-00-994-9080
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OVERALL
flat_height1.750 INCHES NOMINAL IN
taper_length7.000 INCHES NOMINAL IN
overall_width1.687 INCHES NOMINAL IN
overall_height4.500 INCHES NOMINAL IN
overall_length8.250 INCHES NOMINAL IN
first_flat_length7.000 INCHES NOMINAL IN
surface_treatmentPHOSPHATE OVERALL
material_document_and_classificationQQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-994-9080
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 8441665 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FIRST FLAT LENGTH: 7.000 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
TAPER LENGTH: 7.000 INCHES NOMINAL IN
•
SURFACE TREATMENT: PHOSPHATE OVERALL
•
MATERIAL: STEEL COMP 4140 OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT4.500 INCHES NOMINAL IN
FIRST FLAT LENGTH7.000 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH8.250 INCHES NOMINAL IN
OVERALL WIDTH1.687 INCHES NOMINAL IN
TAPER LENGTH7.000 INCHES NOMINAL IN
SURFACE TREATMENTPHOSPHATE OVERALL
MATERIALSTEEL COMP 4140 OVERALL
FLAT HEIGHT1.750 INCHES NOMINAL IN
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 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 8441665?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 8441665?
8441665 is a KEY,MACHINE.
What is the NSN for 8441665?
8441665 is cataloged in the U.S. Government catalog under NSN 5315-00-994-9080. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 8441665

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.