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549642 — BOLT,INTERNAL WRENCHING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

549642: BOLT,INTERNAL WRENCHING.

The BOLT,INTERNAL WRENCHING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 OVERALL, special_features: M4-0.70 X 45MM MM, part_name_assigned_by_controlling_agency: SOCKET HEAD SCREW CAP. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-678-4972, 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
549642
NSN: 5306-01-678-4972
FSC: 5306 — Bolts
CAGE: 5YWZ2 — BRIGHTON-BEST INTERNATIONAL INC (USA)
SPECIFICATIONS
materialSTEEL COMP 316 OVERALL
special_featuresM4-0.70 X 45MM MM
part_name_assigned_by_controlling_agencySOCKET HEAD SCREW CAP
NSN5306-01-678-4972
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 549642 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL: STEEL COMP 316 OVERALL
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESM4-0.70 X 45MM MM
PART NAME ASSIGNED BY CONTROLLING AGENCYSOCKET HEAD SCREW CAP
MATERIALSTEEL COMP 316 OVERALL
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 549642?
549642 is a BOLT,INTERNAL WRENCHING.
What is the NSN for 549642?
549642 is cataloged in the U.S. Government catalog under NSN 5306-01-678-4972. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.