42637-4 — TERMINAL,TAPER PIN,ELECTRICAL

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

42637-4: TERMINAL,TAPER PIN,ELECTRICAL.

The TERMINAL,TAPER PIN,ELECTRICAL is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: STEEL OVERALL, head_style: HEADLESS (SETSCREW), point_style: CUP, thread_class: 3A A, thread_length: 0.500 INCHES MAXIMUM IN, fastener_length: 0.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-042-6374, 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

42637-4

NSN: 5305-00-042-6374
NIINs: 000426374, 003501319, 008528845
FSC: 5305 — Screws
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)

SPECIFICATIONS

material	STEEL OVERALL
head_style	HEADLESS (SETSCREW)
point_style	CUP
thread_class	3A A
thread_length	0.500 INCHES MAXIMUM IN
fastener_length	0.500 INCHES NOMINAL IN
hardness_rating	45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
thread_direction	RIGHT-HAND
surface_treatment	CADMIUM OR ZINC OVERALL
width_across_flats	0.188 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN
internal_drive_style	HEXAGON
nominal_thread_diameter	0.375 INCHES IN
NSN	5305-00-042-6374

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.188 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN

•

FASTENER LENGTH: 0.500 INCHES NOMINAL IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 1,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 0.500 INCHES MAXIMUM IN

•

HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL

•

NOMINAL THREAD DIAMETER: 0.375 INCHES IN

•

HEAD STYLE: HEADLESS (SETSCREW)

•

THREAD DIRECTION: RIGHT-HAND

TYPICAL APPLICATIONS

Long-term data archival and compliance retention
Offsite backup and disaster recovery
Air-gapped ransomware protection
Cold storage tier for infrequently accessed data

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.188 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN
FASTENER LENGTH	0.500 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 1,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 1,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.500 INCHES MAXIMUM IN
HARDNESS RATING	45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER	0.375 INCHES IN
HEAD STYLE	HEADLESS (SETSCREW)
THREAD DIRECTION	RIGHT-HAND
POINT STYLE	CUP
SURFACE TREATMENT	CADMIUM OR ZINC OVERALL

SUBSTITUTES & CROSS-REFERENCES 1

FFS103TYPE3STYLE4Reference document

Same NSN cross-reference

Reference document — Identification reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 42637-4?

42637-4 is a TERMINAL,TAPER PIN,ELECTRICAL.

What parts can replace 42637-4?

There is 1 known substitute for 42637-4: FFS103TYPE3STYLE4. Substitute compatibility should be verified for your specific system.

What is the NSN for 42637-4?

42637-4 is cataloged in the U.S. Government catalog under NSN 5305-00-042-6374. This indicates validated use in U.S. government and defense supply chains.

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42637-4 — TERMINAL,TAPER PIN,ELECTRICAL

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