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66117H5-10 — SCREW,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

66117H5-10: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL COMP H11 OVERALL, head_style: FLAT COUNTERSUNK, grip_length: 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN, head_diameter: 0.625 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-369-0750, 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
66117H5-10
NSN: 5305-00-369-0750
FSC: 5305 — Screws
CAGE: 50392 — SPS TECHNOLOGIES INC (USA)
SPECIFICATIONS
materialSTEEL COMP H11 OVERALL
head_styleFLAT COUNTERSUNK
grip_length0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN
head_diameter0.625 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
thread_length0.441 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN
fastener_length1.076 INCHES MINIMUM AND 1.123 INCHES MAXIMUM IN
hardness_rating46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
countersink_angle99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
surface_treatmentCADMIUM AND CHROMATE OVERALL
NSN5305-00-369-0750
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 66117H5-10 · 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
•
FASTENER LENGTH: 1.076 INCHES MINIMUM AND 1.123 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MAC PS13145 FSCM 76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.441 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN
•
HARDNESS RATING: 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
FASTENER LENGTH1.076 INCHES MINIMUM AND 1.123 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMAC PS13145 FSCM 76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.441 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN
HARDNESS RATING46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
GRIP DIAMETER0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 6
642AS1004-7Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
3M623-5-10Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
HS2623-5Z10Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
642AS1004-3Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
HT195-5-10Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
HT8115-5-10Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 66117H5-10?
66117H5-10 is a SCREW,CLOSE TOLERANCE.
What parts can replace 66117H5-10?
There are 6 known substitutes for 66117H5-10: 642AS1004-7, 3M623-5-10, HS2623-5Z10 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 66117H5-10?
66117H5-10 is cataloged in the U.S. Government catalog under NSN 5305-00-369-0750. 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.