66908H5-12 — SCREW,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

66908H5-12: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT COUNTERSUNK, grip_length: 0.750 INCHES NOMINAL IN, thread_class: 3A A, grip_diameter: 0.3266 INCHES MINIMUM AND 0.3276 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 5305-01-074-9045, 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

66908H5-12

NSN: 5305-01-074-9045
FSC: 5305 — Screws
CAGE: 80539 — SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA (USA)

SPECIFICATIONS

material	STEEL OVERALL
head_style	FLAT COUNTERSUNK
grip_length	0.750 INCHES NOMINAL IN
thread_class	3A A
grip_diameter	0.3266 INCHES MINIMUM AND 0.3276 INCHES MAXIMUM IN
head_diameter	0.625 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
thread_length	0.467 INCHES NOMINAL IN
fastener_length	1.217 INCHES NOMINAL IN
hardness_rating	46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
thread_direction	RIGHT-HAND
countersink_angle	100.0 DEGREES NOMINAL
surface_treatment	CADMIUM AND CHROMATE OVERALL
NSN	5305-01-074-9045

COMPONENT DIAGRAM

KEY FEATURES

•

FASTENER LENGTH: 1.217 INCHES NOMINAL IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MAC PS-13145 FSCM 76301 MFR REF ALL TREATMENT RESPONSES OVERALL

•

THREAD LENGTH: 0.467 INCHES NOMINAL 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

•

SINGLE SHEAR STRENGTH: ERR-060

•

NOMINAL THREAD DIAMETER: 0.312 INCHES IN

•

HEAD STYLE: FLAT COUNTERSUNK

TECHNICAL CHARACTERISTICS

FASTENER LENGTH	1.217 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MAC PS-13145 FSCM 76301 MFR REF ALL TREATMENT RESPONSES OVERALL
THREAD LENGTH	0.467 INCHES NOMINAL 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
SINGLE SHEAR STRENGTH	ERR-060
NOMINAL THREAD DIAMETER	0.312 INCHES IN
HEAD STYLE	FLAT COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
GRIP LENGTH	0.750 INCHES NOMINAL 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 3

ST3M559-5-12Reference document

Same NSN cross-reference

Reference document — Secondary reference

HS2623-5-12Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

HT307-5-12Reference document

Same NSN cross-reference

Reference document — Secondary reference

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 66908H5-12?

66908H5-12 is a SCREW,CLOSE TOLERANCE.

What parts can replace 66908H5-12?

There are 3 known substitutes for 66908H5-12: ST3M559-5-12, HS2623-5-12, HT307-5-12. Substitute compatibility should be verified for your specific system.

What is the NSN for 66908H5-12?

66908H5-12 is cataloged in the U.S. Government catalog under NSN 5305-01-074-9045. This indicates validated use in U.S. government and defense supply chains.

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