1881-128 — WASHER,KEY

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

1881-128: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL UNS K44220 OR STEEL UNS K44315 OVERALL, hole_diameter: 3.590 INCHES NOMINAL IN, outside_diameter: 4.120 INCHES NOMINAL IN, special_features: SIX 10-32 UNF-3B THD HOLES LOCATED ON PER1PHERAL SURFACE, style_designator: KEY, material_thickness: 0.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-175-6077, 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

1881-128

NSN: 5310-01-175-6077
FSC: 5310 — Nuts and Washers
CAGE: 6K4C8 — GOODRICH CORPORATION (USA)

SPECIFICATIONS

material	STEEL UNS K44220 OR STEEL UNS K44315 OVERALL
hole_diameter	3.590 INCHES NOMINAL IN
outside_diameter	4.120 INCHES NOMINAL IN
special_features	SIX 10-32 UNF-3B THD HOLES LOCATED ON PER1PHERAL SURFACE
style_designator	KEY
material_thickness	0.500 INCHES NOMINAL IN
internal_key_quantity	2
internal_straight_key_width	0.495 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN
material_document_and_classification	MIL-S-8844 CL 3 MIL SPEC ALL MATERIAL RESPONSES OVERALL
distance_from_centerline_to_top_of_internal_key	1.571 INCHES NOMINAL IN
NSN	5310-01-175-6077

COMPONENT DIAGRAM

KEY FEATURES

•

INTERNAL STRAIGHT KEY WIDTH: 0.495 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN

•

DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY: 1.571 INCHES NOMINAL IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-P-23377 MIL SPEC 1ST TREATMENT RESPONSE AND FED-STD-595 COLOR 17875 FED STD 2ND TREATMENT RESPONSE AND QQ-C-320 FED SPEC 3RD TREATMENT RESPONSE AND CPC 8225,13002 MFR REF 4TH TREATMENT RESPONSE OVERALL

•

STYLE DESIGNATOR: KEY

•

MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-8844 CL 3 MIL SPEC ALL MATERIAL RESPONSES OVERALL

•

OUTSIDE DIAMETER: 4.120 INCHES NOMINAL IN

•

MATERIAL THICKNESS: 0.500 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

INTERNAL STRAIGHT KEY WIDTH	0.495 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY	1.571 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-P-23377 MIL SPEC 1ST TREATMENT RESPONSE AND FED-STD-595 COLOR 17875 FED STD 2ND TREATMENT RESPONSE AND QQ-C-320 FED SPEC 3RD TREATMENT RESPONSE AND CPC 8225,13002 MFR REF 4TH TREATMENT RESPONSE OVERALL
STYLE DESIGNATOR	KEY
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-8844 CL 3 MIL SPEC ALL MATERIAL RESPONSES OVERALL
OUTSIDE DIAMETER	4.120 INCHES NOMINAL IN
MATERIAL THICKNESS	0.500 INCHES NOMINAL IN
SPECIAL FEATURES	SIX 10-32 UNF-3B THD HOLES LOCATED ON PER1PHERAL SURFACE
MATERIAL	STEEL UNS K44220 OR STEEL UNS K44315 OVERALL
INTERNAL KEY QUANTITY	2

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 1881-128?

1881-128 is a WASHER,KEY.

What is the NSN for 1881-128?

1881-128 is cataloged in the U.S. Government catalog under NSN 5310-01-175-6077. This indicates validated use in U.S. government and defense supply chains.

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1881-128 — WASHER,KEY

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