424985 — SCREW,ASSEMBLED WASHER

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

424985: SCREW,ASSEMBLED WASHER.

The SCREW,ASSEMBLED WASHER is a the manufacturer industrial component. Key specifications include head_style: ROUND, head_height: 0.160 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.443 INCHES MINIMUM AND 0.472 INCHES MAXIMUM IN, 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 5305-00-042-4985, 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

424985

NSN: 5305-00-042-4985
FSC: 5305 — Screws
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)

SPECIFICATIONS

head_style	ROUND
head_height	0.160 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
thread_class	2A A
head_diameter	0.443 INCHES MINIMUM AND 0.472 INCHES MAXIMUM IN
thread_length	0.500 INCHES MAXIMUM IN
fastener_length	0.500 INCHES NOMINAL IN
hardness_rating	40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM PRIMARY WASHER
washer_quantity	1
thread_direction	RIGHT-HAND
surface_treatment	CADMIUM OR ZINC OVERALL
internal_drive_style	CROSS RECESS TYPE 1
primary_washer_style	FLAT INTERNAL TEETH
NSN	5305-00-042-4985

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.160 INCHES MINIMUM AND 0.175 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

•

PRIMARY WASHER OUTSIDE DIAMETER: 0.466 INCHES MINIMUM AND 0.478 INCHES MAXIMUM IN

•

THREAD LENGTH: 0.500 INCHES MAXIMUM IN

•

HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM PRIMARY WASHER

•

MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD 3RD MATERIAL RESPONSE OR SAE ASSN STD 4TH MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.160 INCHES MINIMUM AND 0.175 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
PRIMARY WASHER OUTSIDE DIAMETER	0.466 INCHES MINIMUM AND 0.478 INCHES MAXIMUM IN
THREAD LENGTH	0.500 INCHES MAXIMUM IN
HARDNESS RATING	40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM PRIMARY WASHER
MATERIAL DOCUMENT AND CLASSIFICATION	SAE ASSN STD 3RD MATERIAL RESPONSE OR SAE ASSN STD 4TH MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES IN
HEAD STYLE	ROUND
PRIMARY WASHER STYLE	FLAT INTERNAL TEETH

OTHER ITEMS IN FSC 5305 — Screws

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753

SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 424985?

424985 is a SCREW,ASSEMBLED WASHER.

What is the NSN for 424985?

424985 is cataloged in the U.S. Government catalog under NSN 5305-00-042-4985. This indicates validated use in U.S. government and defense supply chains.

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424985 — SCREW,ASSEMBLED WASHER

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