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8754391 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

8754391: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1040 OVERALL, recess_angle: 90.0 DEGREES NOMINAL, hole_diameter: 1.003 INCHES MINIMUM AND 1.009 INCHES MAXIMUM IN, heat_treatment: QUENCHED AND TEMPERED, hardness_rating: 40.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM, recess_diameter: 1.170 INCHES MINIMUM AND 1.190 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-678-2983, 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
8754391
NSN: 5310-00-678-2983
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 1040 OVERALL
recess_angle90.0 DEGREES NOMINAL
hole_diameter1.003 INCHES MINIMUM AND 1.009 INCHES MAXIMUM IN
heat_treatmentQUENCHED AND TEMPERED
hardness_rating40.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM
recess_diameter1.170 INCHES MINIMUM AND 1.190 INCHES MAXIMUM IN
outside_diameter1.550 INCHES MINIMUM AND 1.570 INCHES MAXIMUM IN
special_featuresONE BEARING SURFACE HAS A 45 DEGREE BEVEL
style_designatorRECESSED
material_thickness0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
material_document_and_classificationQQ-S-700 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-678-2983
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 8754391 · 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
•
HEAT TREATMENT: QUENCHED AND TEMPERED
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: RECESSED
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-700 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.550 INCHES MINIMUM AND 1.570 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
•
RECESS DIAMETER: 1.170 INCHES MINIMUM AND 1.190 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAT TREATMENTQUENCHED AND TEMPERED
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORRECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-700 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.550 INCHES MINIMUM AND 1.570 INCHES MAXIMUM IN
MATERIAL THICKNESS0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
RECESS DIAMETER1.170 INCHES MINIMUM AND 1.190 INCHES MAXIMUM IN
SPECIAL FEATURESONE BEARING SURFACE HAS A 45 DEGREE BEVEL
MATERIALSTEEL COMP 1040 OVERALL
HOLE DIAMETER1.003 INCHES MINIMUM AND 1.009 INCHES MAXIMUM IN
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 8754391?
8754391 is a WASHER,RECESSED.
What is the NSN for 8754391?
8754391 is cataloged in the U.S. Government catalog under NSN 5310-00-678-2983. 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.