PartsTable
Technical Data Sheet
Download PDF

63278 — BOLT,MACHINE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

63278: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, grip_length: 4.25 INCHES NOMINAL IN, head_height: 0.455 INCHES MINIMUM AND 0.524 INCHES MAXIMUM IN, thread_class: 2A A, grip_diameter: 0.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-173-5721, 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
63278
NSN: 5330-01-173-5721
NIINs: 011735721, 016503927, 016593605
FSC: 5330 — Packing and Gasket Materials
CAGE: 80477 — ADAMS RITE AEROSPACE, INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
grip_length4.25 INCHES NOMINAL IN
head_height0.455 INCHES MINIMUM AND 0.524 INCHES MAXIMUM IN
thread_class2A A
grip_diameter0.750 INCHES NOMINAL IN
thread_length1.75 INCHES NOMINAL IN
fastener_length6.00 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
width_between_flats1.212 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
nominal_thread_diameter0.750 INCHES IN
NSN5330-01-173-5721
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 63278 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy 63278?
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 63278?
63278 is a BOLT,MACHINE.
What is the NSN for 63278?
63278 is cataloged in the U.S. Government catalog under NSN 5330-01-173-5721. 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 — 63278