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HT8137-5-17AS — SCREW,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

HT8137-5-17AS: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY UNS R54520 OVERALL, head_style: FLAT COUNTERSUNK UNDERCUT, grip_length: 1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN, head_height: 0.088 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-129-6932, 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
HT8137-5-17AS
NSN: 5305-01-129-6932
FSC: 5305 — Screws
CAGE: 06950 — HOWMET GLOBAL FASTENING SYSTEMS INC (USA)
SPECIFICATIONS
materialTITANIUM ALLOY UNS R54520 OVERALL
head_styleFLAT COUNTERSUNK UNDERCUT
grip_length1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN
head_height0.088 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN
head_diameter0.629 INCHES MINIMUM AND 0.634 INCHES MAXIMUM IN
thread_length0.506 INCHES MINIMUM AND 0.573 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES THREADS
fastener_length1.578 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN
special_featuresFURNISH WITH ONE O RING
thread_directionRIGHT-HAND
NSN5305-01-129-6932
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: HT8137-5-17AS · 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
•
SURFACE FINISH: 32.0 MICROINCHES THREADS
•
HEAD HEIGHT: 0.088 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.578 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.506 INCHES MINIMUM AND 0.573 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: NAS621 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK UNDERCUT
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE FINISH32.0 MICROINCHES GRIP
HEAD HEIGHT0.088 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
FASTENER LENGTH1.578 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN
THREAD LENGTH0.506 INCHES MINIMUM AND 0.573 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONNAS621 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLEFLAT COUNTERSUNK UNDERCUT
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES 5
10115201Reference document
Same NSN cross-reference
Reference document — Informative reference only
WC8137-5-17AReference document
Same NSN cross-reference
Reference document — Secondary reference
ST3M430V5-17ASReference document
Same NSN cross-reference
Reference document — Secondary reference
110179-5-17ASSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
BM33024V5-17UReference 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 HT8137-5-17AS?
HT8137-5-17AS is a SCREW,CLOSE TOLERANCE.
What parts can replace HT8137-5-17AS?
There are 5 known substitutes for HT8137-5-17AS: 10115201, WC8137-5-17A, ST3M430V5-17AS and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for HT8137-5-17AS?
HT8137-5-17AS is cataloged in the U.S. Government catalog under NSN 5305-01-129-6932. 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.