HT271A4-10M — SCREW,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

HT271A4-10M: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY UNS R56400 FASTENER, head_style: FLAT COUNTERSUNK UNDERCUT, grip_length: 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN, head_height: 0.106 INCHES MINIMUM AND 0.108 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 5305-01-347-4022, 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

HT271A4-10M

NSN: 5305-01-347-4022
FSC: 5305 — Screws
CAGE: L4528 — LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC (CAN)

SPECIFICATIONS

material	TITANIUM ALLOY UNS R56400 FASTENER
head_style	FLAT COUNTERSUNK UNDERCUT
grip_length	0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
head_height	0.106 INCHES MINIMUM AND 0.108 INCHES MAXIMUM IN
thread_class	3A A
grip_diameter	0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN
head_diameter	0.5018 INCHES MINIMUM AND 0.5066 INCHES MAXIMUM IN
thread_length	0.469 INCHES NOMINAL IN
surface_finish	32.0 MICROINCHES THREADS
fastener_length	1.078 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
special_features	FLUORSILICON RUBBER O-RING,PER MIL-R-25988 TY1,CL 1,GRADE 70 LUBRICANTS APPLIED ON SHANK AND THREADS
thread_direction	RIGHT-HAND
NSN	5305-01-347-4022

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 32.0 MICROINCHES THREADS

•

HEAD HEIGHT: 0.106 INCHES MINIMUM AND 0.108 INCHES MAXIMUM IN

•

FASTENER LENGTH: 1.078 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN

•

THREAD LENGTH: 0.469 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE FASTENER

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

TECHNICAL CHARACTERISTICS

SURFACE FINISH	32.0 MICROINCHES THREADS
SURFACE FINISH	32.0 MICROINCHES GRIP
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD
HEAD HEIGHT	0.106 INCHES MINIMUM AND 0.108 INCHES MAXIMUM IN
FASTENER LENGTH	1.078 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
THREAD LENGTH	0.469 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
NOMINAL THREAD DIAMETER	0.250 INCHES IN
FEATURES PROVIDED	O RING AND DRY FILM LUBRICANT AND CETYL ALCOHOL LUBRICANT
HEAD STYLE	FLAT COUNTERSUNK UNDERCUT

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 1

ST3M430V4-10ASMSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is HT271A4-10M?

HT271A4-10M is a SCREW,CLOSE TOLERANCE.

What parts can replace HT271A4-10M?

There is 1 known substitute for HT271A4-10M: ST3M430V4-10ASM. Substitute compatibility should be verified for your specific system.

What is the NSN for HT271A4-10M?

HT271A4-10M is cataloged in the U.S. Government catalog under NSN 5305-01-347-4022. This indicates validated use in U.S. government and defense supply chains.

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