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Technical Data Sheet
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HR7966 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

HR7966: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.203 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 1.000 INCHES MAXIMUM IN, fastener_length: 1.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-010-0122, 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
HR7966
NSN: 5306-00-010-0122
FSC: 5306 — Bolts
CAGE: 51228 — ECOLAIRE INC BALDWIN-HAMILTON CO DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.203 INCHES NOMINAL IN
thread_class2A A
thread_length1.000 INCHES MAXIMUM IN
fastener_length1.000 INCHES NOMINAL IN
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
width_between_flats0.500 INCHES NOMINAL IN
nominal_thread_diameter0.312 INCHES IN
thread_quantity_per_inch18
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5306-00-010-0122
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: HR7966 · 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: 0.203 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.000 INCHES NOMINAL IN
•
THREAD LENGTH: 1.000 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE GR 1 OR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
FEATURES PROVIDED: FINISHED HEAD
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.203 INCHES NOMINAL IN
FASTENER LENGTH1.000 INCHES NOMINAL IN
THREAD LENGTH1.000 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE GR 1 OR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES IN
FEATURES PROVIDEDFINISHED HEAD
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.500 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 10P STYLE
SUBSTITUTES & CROSS-REFERENCES 8
17918Reference document
Same NSN cross-reference
Reference document — Secondary reference
81311S4105-457685PC21Reference document
Same NSN cross-reference
Reference document — Secondary reference
81311S41-224PC16Reference document
Same NSN cross-reference
Reference document — Secondary reference
A1577PC80Reference document
Same NSN cross-reference
Reference document — Secondary reference
AMC61S41-352PC1645Reference document
Same NSN cross-reference
Reference document — Secondary reference
81311S41-295PC12Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is HR7966?
HR7966 is a BOLT,MACHINE.
What parts can replace HR7966?
There are 8 known substitutes for HR7966: 17918, 81311S4105-457685PC21, 81311S41-224PC16 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for HR7966?
HR7966 is cataloged in the U.S. Government catalog under NSN 5306-00-010-0122. This indicates validated use in U.S. government and defense supply chains.
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