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420475 — CLUTCH ASSEMBLY,FRICTION

✓ Government record, cited
Legrand · MRO · MRO_GENERAL
PRODUCT OVERVIEW

420475: CLUTCH ASSEMBLY,FRICTION.

The CLUTCH ASSEMBLY,FRICTION is a Legrand industrial component. Key specifications include operating_control_method: AUTOMATIC. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-042-0475, 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
MRO→ MRO_GENERAL→ 420475
NSN: 5305-00-042-0475
NIINs: 000420475, 004445129, 009150872
FSC: 5305 — Screws
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)
SPECIFICATIONS
operating_control_methodAUTOMATIC
NSN5305-00-042-0475
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 420475 · Legrand ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HEAD HEIGHT: 0.123 INCHES MINIMUM AND 0.137 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM 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
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PRIMARY WASHER OUTSIDE DIAMETER: 0.372 INCHES MINIMUM AND 0.383 INCHES MAXIMUM IN
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THREAD LENGTH: 0.312 INCHES MAXIMUM IN
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HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM PRIMARY WASHER
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MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD ALL MATERIAL RESPONSES OVERALL
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.123 INCHES MINIMUM AND 0.137 INCHES MAXIMUM IN
FASTENER LENGTH0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-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 DIAMETER0.372 INCHES MINIMUM AND 0.383 INCHES MAXIMUM IN
THREAD LENGTH0.312 INCHES MAXIMUM IN
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM PRIMARY WASHER
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD ALL MATERIAL RESPONSES OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEROUND
PRIMARY WASHER STYLEFLAT INTERNAL TEETH
SUBSTITUTES & CROSS-REFERENCES 1
5305000420475Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 420475?
420475 is a CLUTCH ASSEMBLY,FRICTION manufactured by Legrand. It is classified as a MRO (MRO_GENERAL).
What parts can replace 420475?
There is 1 known substitute for 420475: 5305000420475. Substitute compatibility should be verified for your specific system.
What is the NSN for 420475?
420475 is cataloged in the U.S. Government catalog under NSN 5305-00-042-0475. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.