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3176210-B-044 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3176210-B-044: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGONHEXAGON, head_height: 0.195 INCHES MINIMUM AND 0.195 INCHES MINIMUM AND 0.235 INCHES MAXIMUM0.235 INCHES MAXIMUM IN, thread_class: 2A2A, thread_length: 0.514 INCHES MINIMUM AND 0.514 INCHES MINIMUM AND 0.625 INCHES MAXIMUM0.625 INCHES MAXIMUM IN, fastener_length: 0.625 INCHES NOMINAL0.625 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-138-6284, 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
3176210-B-044
NSN: 5306-01-138-6284
FSC: 5306 — Bolts
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGONHEXAGON
head_height0.195 INCHES MINIMUM AND 0.195 INCHES MINIMUM AND 0.235 INCHES MAXIMUM0.235 INCHES MAXIMUM IN
thread_class2A2A
thread_length0.514 INCHES MINIMUM AND 0.514 INCHES MINIMUM AND 0.625 INCHES MAXIMUM0.625 INCHES MAXIMUM IN
fastener_length0.625 INCHES NOMINAL0.625 INCHES NOMINAL IN
thread_directionRIGHT-HANDRIGHT-HAND
features_providedFINISHED HEADFINISHED HEAD
surface_treatmentZINC OVERALLZINC OVERALL
width_between_flats0.484 INCHES MINIMUM AND 0.484 INCHES MINIMUM AND 0.500 INCHES MAXIMUM0.500 INCHES MAXIMUM IN
nominal_thread_diameter0.312 INCHES0.312 INCHES IN
thread_quantity_per_inch1818
NSN5306-01-138-6284
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3176210-B-044 · 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
•
HEAD HEIGHT: 0.195 INCHES MINIMUM AND 0.195 INCHES MINIMUM AND 0.235 INCHES MAXIMUM0.235 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.625 INCHES NOMINAL0.625 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALLQQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.514 INCHES MINIMUM AND 0.514 INCHES MINIMUM AND 0.625 INCHES MAXIMUM0.625 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.312 INCHES0.312 INCHES IN
•
FEATURES PROVIDED: FINISHED HEADFINISHED HEAD
•
HEAD STYLE: HEXAGONHEXAGON
•
THREAD DIRECTION: RIGHT-HANDRIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.195 INCHES MINIMUM AND 0.195 INCHES MINIMUM AND 0.235 INCHES MAXIMUM0.235 INCHES MAXIMUM IN
FASTENER LENGTH0.625 INCHES NOMINAL0.625 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALLQQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.514 INCHES MINIMUM AND 0.514 INCHES MINIMUM AND 0.625 INCHES MAXIMUM0.625 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.312 INCHES0.312 INCHES IN
FEATURES PROVIDEDFINISHED HEADFINISHED HEAD
HEAD STYLEHEXAGONHEXAGON
THREAD DIRECTIONRIGHT-HANDRIGHT-HAND
WIDTH BETWEEN FLATS0.484 INCHES MINIMUM AND 0.484 INCHES MINIMUM AND 0.500 INCHES MAXIMUM0.500 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 2 TYPE AND 10P STYLE AND 10P STYLE AND 8 GRADE8 GRADE
SUBSTITUTES & CROSS-REFERENCES 1
FF-S-85Reference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3176210-B-044?
3176210-B-044 is a BOLT,MACHINE.
What parts can replace 3176210-B-044?
There is 1 known substitute for 3176210-B-044: FF-S-85. Substitute compatibility should be verified for your specific system.
What is the NSN for 3176210-B-044?
3176210-B-044 is cataloged in the U.S. Government catalog under NSN 5306-01-138-6284. 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.