PartsTable
Technical Data Sheet
Download PDF

ST4M150C4002 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

ST4M150C4002: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 321 OR STEEL COMP 347 OVERALL, recess_angle: 79.0 DEGREES MINIMUM AND 81.0 DEGREES MAXIMUM, hole_diameter: 0.250 INCHES MINIMUM AND 0.257 INCHES MAXIMUM IN, recess_diameter: 0.497 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN, outside_diameter: 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN, special_features: COLOR CODE DTM (DYKEMCO). This part is cataloged in the U.S.

Government catalog under NSN 5310-01-072-9037, 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
ST4M150C4002
NSN: 5310-01-072-9037
FSC: 5310 — Nuts and Washers
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP 321 OR STEEL COMP 347 OVERALL
recess_angle79.0 DEGREES MINIMUM AND 81.0 DEGREES MAXIMUM
hole_diameter0.250 INCHES MINIMUM AND 0.257 INCHES MAXIMUM IN
recess_diameter0.497 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
outside_diameter0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
special_featuresCOLOR CODE DTM (DYKEMCO)
style_designatorRECESSED
surface_treatmentPASSIVATE OVERALL
material_thickness0.116 INCHES MINIMUM AND 0.124 INCHES MAXIMUM IN
minimum_tensile_strength750000 POUNDS PER SQUARE INCH LBS
material_document_and_classificationQQ-S-763,COND A FED SPEC ALL MATERIAL RESPONSES OVERALL
NSN5310-01-072-9037
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: ST4M150C4002 · 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
•
STYLE DESIGNATOR: RECESSED
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763,COND A FED SPEC ALL MATERIAL RESPONSES OVERALL
•
OUTSIDE DIAMETER: 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.116 INCHES MINIMUM AND 0.124 INCHES MAXIMUM IN
•
RECESS DIAMETER: 0.497 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
•
COLOR: BROWN OVERALL
•
SURFACE TREATMENT: PASSIVATE OVERALL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORRECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,COND A FED SPEC ALL MATERIAL RESPONSES OVERALL
OUTSIDE DIAMETER0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
MATERIAL THICKNESS0.116 INCHES MINIMUM AND 0.124 INCHES MAXIMUM IN
RECESS DIAMETER0.497 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
COLORBROWN OVERALL
SPECIAL FEATURESCOLOR CODE DTM (DYKEMCO)
SURFACE TREATMENTPASSIVATE OVERALL
MINIMUM TENSILE STRENGTH750000 POUNDS PER SQUARE INCH LBS
MATERIALSTEEL COMP 321 OR STEEL COMP 347 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: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy ST4M150C4002?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is ST4M150C4002?
ST4M150C4002 is a WASHER,RECESSED.
What is the NSN for ST4M150C4002?
ST4M150C4002 is cataloged in the U.S. Government catalog under NSN 5310-01-072-9037. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — ST4M150C4002

✓ 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.