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3176210-A-044 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3176210-A-044: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include 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, hardness_rating: 32.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL38.0 ROCKWELL C MAXIMUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-144-2188, 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-A-044
NSN: 5306-01-144-2188
FSC: 5306 — Bolts
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
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
hardness_rating32.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL38.0 ROCKWELL C MAXIMUM OVERALL
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
minimum_tensile_strength150000 POUNDS PER SQUARE INCH150000 POUNDS PER SQUARE INCH LBS
NSN5306-01-144-2188
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3176210-A-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 TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALLQQ-Z-325 TY2 CL3 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
•
HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL38.0 ROCKWELL C MAXIMUM OVERALL
•
NOMINAL THREAD DIAMETER: 0.312 INCHES0.312 INCHES IN
•
FEATURES PROVIDED: FINISHED HEADFINISHED HEAD
•
HEAD STYLE: HEXAGONHEXAGON
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 TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALLQQ-Z-325 TY2 CL3 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
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL38.0 ROCKWELL C MAXIMUM OVERALL
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
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 3176210-A-044?
3176210-A-044 is a BOLT,MACHINE.
What is the NSN for 3176210-A-044?
3176210-A-044 is cataloged in the U.S. Government catalog under NSN 5306-01-144-2188. 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.