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HT8137-4-11ASM — SCREW,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

HT8137-4-11ASM: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY FASTENER, head_style: FLAT COUNTERSUNK, grip_length: 0.6775 INCHES MINIMUM AND 0.6975 INCHES MAXIMUM IN, head_height: 0.0713 INCHES MINIMUM AND 0.0733 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-720-0300, 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
HT8137-4-11ASM
NSN: 5305-01-720-0300
FSC: 5305 — Screws
CAGE: 06950 — HOWMET GLOBAL FASTENING SYSTEMS INC (USA)
SPECIFICATIONS
materialTITANIUM ALLOY FASTENER
head_styleFLAT COUNTERSUNK
grip_length0.6775 INCHES MINIMUM AND 0.6975 INCHES MAXIMUM IN
head_height0.0713 INCHES MINIMUM AND 0.0733 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN
head_diameter0.5018 INCHES MINIMUM AND 0.5066 INCHES MAXIMUM IN
thread_length0.469 INCHES NOMINAL IN
fastener_length1.1405 INCHES MINIMUM AND 1.1875 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
countersink_angle100.0 DEGREES NOMINAL
features_providedDRY FILM LUBRICANT AND CETYL ALCOHOL LUBRICANT
NSN5305-01-720-0300
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: HT8137-4-11ASM · 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: 0.0713 INCHES MINIMUM AND 0.0733 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.1405 INCHES MINIMUM AND 1.1875 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.469 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 6AL-4V PER NAS621 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE FASTENER V
•
NOMINAL THREAD DIAMETER: 0.2500 INCHES IN
•
FEATURES PROVIDED: DRY FILM LUBRICANT AND CETYL ALCOHOL LUBRICANT
•
HEAD STYLE: FLAT COUNTERSUNK
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.0713 INCHES MINIMUM AND 0.0733 INCHES MAXIMUM IN
FASTENER LENGTH1.1405 INCHES MINIMUM AND 1.1875 INCHES MAXIMUM IN
THREAD LENGTH0.469 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION6AL-4V PER NAS621 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE FASTENER V
MATERIAL DOCUMENT AND CLASSIFICATIONST3-251 MFR REF SINGLE MATERIAL RESPONSE RING
NOMINAL THREAD DIAMETER0.2500 INCHES IN
FEATURES PROVIDEDDRY FILM LUBRICANT AND CETYL ALCOHOL LUBRICANT
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
SPECIFICATION/STANDARD DATA76301-ST3-430 MANUFACTURERS STANDARD
SUBSTITUTES & CROSS-REFERENCES 6
ST3M430V4-11ASMSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
ST3M430Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
110179-4-11ASMSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
BM33024V4-11UMSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
HT271A4-11MSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
WC8137-4-11AMSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is HT8137-4-11ASM?
HT8137-4-11ASM is a SCREW,CLOSE TOLERANCE.
What parts can replace HT8137-4-11ASM?
There are 6 known substitutes for HT8137-4-11ASM: ST3M430V4-11ASM, ST3M430, 110179-4-11ASM and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for HT8137-4-11ASM?
HT8137-4-11ASM is cataloged in the U.S. Government catalog under NSN 5305-01-720-0300. This indicates validated use in U.S. government and defense supply chains.
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