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NAS391S8P — WASHER,FINISHING

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

NAS391S8P: WASHER,FINISHING.

The WASHER,FINISHING is a the manufacturer industrial component. Key specifications include radius: 0.025 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN, material: STEEL OVERALL, hole_diameter: 0.347 INCHES MINIMUM AND 0.357 INCHES MAXIMUM IN, overall_height: 0.092 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN, hardness_rating: 104.0 BRINELL STANDARD MINIMUM, outside_diameter: 0.014 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-594-9255, 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
NAS391S8P
NSN: 5310-01-594-9255
FSC: 5310 — Nuts and Washers
CAGE: 10630 — ANILLO INDUSTRIES LLC (USA)
SPECIFICATIONS
radius0.025 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
materialSTEEL OVERALL
hole_diameter0.347 INCHES MINIMUM AND 0.357 INCHES MAXIMUM IN
overall_height0.092 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN
hardness_rating104.0 BRINELL STANDARD MINIMUM
outside_diameter0.014 INCHES NOMINAL IN
style_designatorFINISHING
surface_treatmentNICKEL ALLOY OR CHROMIUM OVERALL
material_thickness0.036 INCHES MINIMUM AND 0.092 INCHES MAXIMUM IN
material_document_and_classificationASTMA108, GRADE 1018 OR GRADE 121 OR ASTM A510, GRADE 1020 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationCADMIUM PLATE IAW SAE AMS-QQ-P-416, TYPE II, CLASS 3; ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-594-9255
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: NAS391S8P · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: CADMIUM PLATE IAW SAE AMS-QQ-P-416, TYPE II, CLASS 3; ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
RADIUS: 0.025 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
•
HARDNESS RATING: 104.0 BRINELL STANDARD MINIMUM
•
STYLE DESIGNATOR: FINISHING
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTMA108, GRADE 1018 OR GRADE 121 OR ASTM A510, GRADE 1020 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.014 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.036 INCHES MINIMUM AND 0.092 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.092 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONCADMIUM PLATE IAW SAE AMS-QQ-P-416, TYPE II, CLASS 3; ASSN STD SINGLE TREATMENT RESPONSE OVERALL
RADIUS0.025 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
HARDNESS RATING104.0 BRINELL STANDARD MINIMUM
STYLE DESIGNATORFINISHING
MATERIAL DOCUMENT AND CLASSIFICATIONASTMA108, GRADE 1018 OR GRADE 121 OR ASTM A510, GRADE 1020 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.014 INCHES NOMINAL IN
MATERIAL THICKNESS0.036 INCHES MINIMUM AND 0.092 INCHES MAXIMUM IN
SURFACE TREATMENTNICKEL ALLOY OR CHROMIUM OVERALL
MATERIALSTEEL 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is NAS391S8P?
NAS391S8P is a WASHER,FINISHING.
What is the NSN for NAS391S8P?
NAS391S8P is cataloged in the U.S. Government catalog under NSN 5310-01-594-9255. 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.