S1620-64175-4 — WASHER,RECESSED

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

S1620-64175-4: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, recess_depth: 0.125 INCHES NOMINAL IN, hole_diameter: 0.375 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN, overall_height: 0.188 INCHES NOMINAL IN, surface_finish: 100.0 MICROINCHES ALL SURFACES, hardness_rating: 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-253-7651, 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

S1620-64175-4

NSN: 5310-00-253-7651
FSC: 5310 — Nuts and Washers
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)

SPECIFICATIONS

material	STEEL CORROSION RESISTING OVERALL
recess_depth	0.125 INCHES NOMINAL IN
hole_diameter	0.375 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
overall_height	0.188 INCHES NOMINAL IN
surface_finish	100.0 MICROINCHES ALL SURFACES
hardness_rating	26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM
outside_diameter	0.625 INCHES NOMINAL IN
style_designator	RECESSED
surface_treatment	PASSIVATE OVERALL
material_thickness	0.131 INCHES MINIMUM AND 0.136 INCHES MAXIMUM IN
minimum_tensile_strength	125000 POUNDS PER SQUARE INCH LBS
material_document_and_classification	MIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN	5310-00-253-7651

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 100.0 MICROINCHES ALL SURFACES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: SS-8435,FSCM 78286 MFR REF SINGLE TREATMENT RESPONSE OVERALL

•

HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM

•

STYLE DESIGNATOR: RECESSED

•

MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL

•

OUTSIDE DIAMETER: 0.625 INCHES NOMINAL IN

•

RECESS DEPTH: 0.125 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

SURFACE FINISH	100.0 MICROINCHES ALL SURFACES
OVERALL HEIGHT	0.188 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	SS-8435,FSCM 78286 MFR REF SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM
STYLE DESIGNATOR	RECESSED
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER	0.625 INCHES NOMINAL IN
RECESS DEPTH	0.125 INCHES NOMINAL IN
MATERIAL THICKNESS	0.131 INCHES MINIMUM AND 0.136 INCHES MAXIMUM IN
SURFACE TREATMENT	PASSIVATE OVERALL

OTHER ITEMS IN FSC 5310 — Nuts and Washers

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

5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540

SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 S1620-64175-4?

S1620-64175-4 is a WASHER,RECESSED.

What is the NSN for S1620-64175-4?

S1620-64175-4 is cataloged in the U.S. Government catalog under NSN 5310-00-253-7651. This indicates validated use in U.S. government and defense supply chains.

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S1620-64175-4 — WASHER,RECESSED

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