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1395AS157 — WASHER,SHOULDERED AND RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1395AS157: WASHER,SHOULDERED AND RECESSED.

The WASHER,SHOULDERED AND RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 4340 OVERALL, recess_angle: 89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM, hole_diameter: 0.316 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN, recess_diameter: 0.360 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN, shoulder_height: 0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN, outside_diameter: 1.030 INCHES MINIMUM AND 1.050 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-252-0620, 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
1395AS157
NSN: 5310-01-252-0620
FSC: 5310 — Nuts and Washers
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 4340 OVERALL
recess_angle89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM
hole_diameter0.316 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
recess_diameter0.360 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
shoulder_height0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
outside_diameter1.030 INCHES MINIMUM AND 1.050 INCHES MAXIMUM IN
special_featuresSOLID FILM LUBRICANT
style_designatorSHOULDERED AND RECESSED
shoulder_diameter0.770 INCHES MINIMUM AND 0.790 INCHES MAXIMUM IN
surface_treatmentPHOSPHATE OVERALL
material_thickness0.130 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
material_document_and_classificationASTM A322 ASSN STD ALL MATERIAL RESPONSES OR ASTM A331 ASSN STD ALL MATERIAL RESPONSES OVERALL
NSN5310-01-252-0620
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1395AS157 · 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
•
SHOULDER HEIGHT: 0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SHOULDERED AND RECESSED
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A322 ASSN STD ALL MATERIAL RESPONSES OR ASTM A331 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
OUTSIDE DIAMETER: 1.030 INCHES MINIMUM AND 1.050 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.130 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
•
SHOULDER DIAMETER: 0.770 INCHES MINIMUM AND 0.790 INCHES MAXIMUM IN
•
RECESS DIAMETER: 0.360 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SHOULDER HEIGHT0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
STYLE DESIGNATORSHOULDERED AND RECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A322 ASSN STD ALL MATERIAL RESPONSES OR ASTM A331 ASSN STD ALL MATERIAL RESPONSES OVERALL
OUTSIDE DIAMETER1.030 INCHES MINIMUM AND 1.050 INCHES MAXIMUM IN
MATERIAL THICKNESS0.130 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
SHOULDER DIAMETER0.770 INCHES MINIMUM AND 0.790 INCHES MAXIMUM IN
RECESS DIAMETER0.360 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
SPECIAL FEATURESSOLID FILM LUBRICANT
SURFACE TREATMENTPHOSPHATE OVERALL
MATERIALSTEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 4340 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 1395AS157?
1395AS157 is a WASHER,SHOULDERED AND RECESSED.
What is the NSN for 1395AS157?
1395AS157 is cataloged in the U.S. Government catalog under NSN 5310-01-252-0620. 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.