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6845972-04 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6845972-04: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4135 OVERALL, hole_diameter: 0.503 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN, heat_treatment: AS FABRICATED, hardness_rating: 20.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM, outside_diameter: 0.858 INCHES MINIMUM AND 0.873 INCHES MAXIMUM IN, style_designator: KEY. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-109-8901, 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
6845972-04
NSN: 5310-00-109-8901
FSC: 5310 — Nuts and Washers
CAGE: 63005 — ROLLS-ROYCE CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 4135 OVERALL
hole_diameter0.503 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN
heat_treatmentAS FABRICATED
hardness_rating20.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM
outside_diameter0.858 INCHES MINIMUM AND 0.873 INCHES MAXIMUM IN
style_designatorKEY
surface_treatmentOXIDE FILM OVERALL
material_thickness0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
internal_key_quantity2
internal_straight_key_width0.115 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
surface_treatment_document_and_classificationAMS 2485 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-109-8901
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6845972-04 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
INTERNAL STRAIGHT KEY WIDTH: 0.115 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
•
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY: 0.195 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS 2485 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
HEAT TREATMENT: AS FABRICATED
•
HARDNESS RATING: 20.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: KEY
•
OUTSIDE DIAMETER: 0.858 INCHES MINIMUM AND 0.873 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
INTERNAL STRAIGHT KEY WIDTH0.115 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY0.195 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2485 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HEAT TREATMENTAS FABRICATED
HARDNESS RATING20.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORKEY
OUTSIDE DIAMETER0.858 INCHES MINIMUM AND 0.873 INCHES MAXIMUM IN
MATERIAL THICKNESS0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
SURFACE TREATMENTOXIDE FILM OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
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 6845972-04?
6845972-04 is a WASHER,KEY.
What is the NSN for 6845972-04?
6845972-04 is cataloged in the U.S. Government catalog under NSN 5310-00-109-8901. 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.