12377969-2 — SCREW,TAPPING

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

12377969-2: SCREW,TAPPING.

The SCREW,TAPPING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1023 OR STEEL COMP 1524 OVERALL, head_style: HEXAGON EXTENDED WASHER, head_height: 0.264 INCHES NOMINAL IN, fastener_length: 0.750 INCHES NOMINAL IN, hardness_rating: 45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL, features_provided: CASEHARDENED. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-443-8437, 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

12377969-2

NSN: 5305-01-443-8437
FSC: 5305 — Screws
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)

SPECIFICATIONS

material	STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1023 OR STEEL COMP 1524 OVERALL
head_style	HEXAGON EXTENDED WASHER
head_height	0.264 INCHES NOMINAL IN
fastener_length	0.750 INCHES NOMINAL IN
hardness_rating	45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
features_provided	CASEHARDENED
surface_treatment	ZINC AND CHROMATE OVERALL
width_between_flats	0.500 INCHES NOMINAL IN
internal_drive_style	W/O INTERNAL DRIVE
nonmachine_thread_style	DOUBLE FLUTE (TYPE F)
extended_washer_diameter	0.624 INCHES MINIMUM AND 0.676 INCHES MAXIMUM IN
extended_washer_thickness	0.035 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
NSN	5305-01-443-8437

COMPONENT DIAGRAM

KEY FEATURES

•

NONMACHINE NOMINAL THREAD DIAMETER: 0.312 INCHES IN

•

EXTENDED WASHER THICKNESS: 0.035 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN

•

HEAD HEIGHT: 0.264 INCHES NOMINAL IN

•

FASTENER LENGTH: 0.750 INCHES NOMINAL IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL

•

EXTENDED WASHER DIAMETER: 0.624 INCHES MINIMUM AND 0.676 INCHES MAXIMUM IN

•

HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL

•

NONMACHINE THREAD STYLE: DOUBLE FLUTE (TYPE F)

TECHNICAL CHARACTERISTICS

NONMACHINE NOMINAL THREAD DIAMETER	0.312 INCHES IN
EXTENDED WASHER THICKNESS	0.035 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
HEAD HEIGHT	0.264 INCHES NOMINAL IN
FASTENER LENGTH	0.750 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
EXTENDED WASHER DIAMETER	0.624 INCHES MINIMUM AND 0.676 INCHES MAXIMUM IN
HARDNESS RATING	45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
NONMACHINE THREAD STYLE	DOUBLE FLUTE (TYPE F)
FEATURES PROVIDED	CASEHARDENED
HEAD STYLE	HEXAGON EXTENDED WASHER

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

FF-S-107Reference document

Same NSN cross-reference

Reference document — Identification reference

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 12377969-2?

12377969-2 is a SCREW,TAPPING.

What parts can replace 12377969-2?

There is 1 known substitute for 12377969-2: FF-S-107. Substitute compatibility should be verified for your specific system.

What is the NSN for 12377969-2?

12377969-2 is cataloged in the U.S. Government catalog under NSN 5305-01-443-8437. This indicates validated use in U.S. government and defense supply chains.

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