8-9478-227 — SCREW,EXTERNALLY RELIEVED BODY

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

8-9478-227: SCREW,EXTERNALLY RELIEVED BODY.

The SCREW,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, head_style: FLAT CHAMFER, head_height: 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.440 INCHES NOMINAL IN, thread_length: 0.210 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-027-5228, 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

8-9478-227

NSN: 5305-01-027-5228
FSC: 5305 — Screws
CAGE: 97592 — PNEUMAFIL CORPORATION (USA)

SPECIFICATIONS

material	STEEL COMP 303 OVERALL
head_style	FLAT CHAMFER
head_height	0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN
thread_class	2A A
head_diameter	0.440 INCHES NOMINAL IN
thread_length	0.210 INCHES NOMINAL IN
fastener_length	0.595 INCHES MINIMUM AND 0.605 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
surface_treatment	PASSIVATE OVERALL
internal_drive_style	SLOT
nominal_thread_diameter	0.250 INCHES IN
first_diameter_from_head	0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
NSN	5305-01-027-5228

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN

•

FASTENER LENGTH: 0.595 INCHES MINIMUM AND 0.605 INCHES MAXIMUM IN

•

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

•

THREAD LENGTH: 0.210 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

FIRST DIAMETER FROM HEAD: 0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

•

HEAD STYLE: FLAT CHAMFER

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN
FASTENER LENGTH	0.595 INCHES MINIMUM AND 0.605 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.210 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
FIRST DIAMETER FROM HEAD	0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER	0.250 INCHES IN
HEAD STYLE	FLAT CHAMFER
THREAD DIRECTION	RIGHT-HAND
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN

SUBSTITUTES & CROSS-REFERENCES 2

2144205Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

2144205-1Same 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 8-9478-227?

8-9478-227 is a SCREW,EXTERNALLY RELIEVED BODY.

What parts can replace 8-9478-227?

There are 2 known substitutes for 8-9478-227: 2144205, 2144205-1. Substitute compatibility should be verified for your specific system.

What is the NSN for 8-9478-227?

8-9478-227 is cataloged in the U.S. Government catalog under NSN 5305-01-027-5228. This indicates validated use in U.S. government and defense supply chains.

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