8278-035 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

8278-035: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, hole_type: DRILLED, head_style: FLAT CHAMFER, head_height: 0.160 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.262 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-240-1269, 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

8278-035

NSN: 5305-01-240-1269
FSC: 5305 — Screws
CAGE: 58251 — FIRST AMERICAN SALES CO INC (USA)

SPECIFICATIONS

material	IRON ALLOY 660 OVERALL
hole_type	DRILLED
head_style	FLAT CHAMFER
head_height	0.160 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN
thread_class	3A A
head_diameter	0.262 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
hole_diameter	0.043 INCHES MINIMUM AND 0.051 INCHES MAXIMUM IN
hole_quantity	1
thread_length	0.547 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN
fastener_length	0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
surface_treatment	PASSIVATE OVERALL
NSN	5305-01-240-1269

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.141 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN

•

HEAD HEIGHT: 0.160 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN

•

FASTENER LENGTH: 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 0.547 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN

•

HOLE CONFIGURATION STYLE: ROUND INTERNAL HEXAGON

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5734 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.164 INCHES IN

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.141 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
HEAD HEIGHT	0.160 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN
FASTENER LENGTH	0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.547 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN
HOLE CONFIGURATION STYLE	ROUND INTERNAL HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5734 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.164 INCHES IN
HEAD STYLE	FLAT CHAMFER
THREAD DIRECTION	RIGHT-HAND

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 4

H 300 080 020 JQTSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

AIC583-035Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

SC2804-035Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

112-0579-035Reference document

Same NSN cross-reference

Reference document — Vendor item drawing 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 8278-035?

8278-035 is a SCREW,CAP,SOCKET HEAD.

What parts can replace 8278-035?

There are 4 known substitutes for 8278-035: H 300 080 020 JQT, AIC583-035, SC2804-035 and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 8278-035?

8278-035 is cataloged in the U.S. Government catalog under NSN 5305-01-240-1269. This indicates validated use in U.S. government and defense supply chains.

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8278-035 — SCREW,CAP,SOCKET HEAD

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