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139205 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

139205: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8740 OVERALL, hole_diameter: 0.874 INCHES MINIMUM AND 0.876 INCHES MAXIMUM IN, hardness_rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM, outside_diameter: 1.530 INCHES MINIMUM AND 1.550 INCHES MAXIMUM IN, style_designator: RECESSED BOTH SIDES, top_recess_angle: 92.0 DEGREES NOMINAL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-048-8836, 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
139205
NSN: 5310-00-048-8836
FSC: 5310 — Nuts and Washers
CAGE: 0AHP5 — CURTISS-WRIGHT CONTROLS, INC. DIV ACTUATION DIVISION (USA)
SPECIFICATIONS
materialSTEEL COMP 8740 OVERALL
hole_diameter0.874 INCHES MINIMUM AND 0.876 INCHES MAXIMUM IN
hardness_rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
outside_diameter1.530 INCHES MINIMUM AND 1.550 INCHES MAXIMUM IN
style_designatorRECESSED BOTH SIDES
top_recess_angle92.0 DEGREES NOMINAL
material_thickness0.108 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
bottom_recess_angle88.0 DEGREES NOMINAL
top_recess_diameter0.920 INCHES NOMINAL IN
bottom_recess_diameter0.940 INCHES NOMINAL IN
material_document_and_classificationAMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-048-8836
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 139205 · 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
•
TOP RECESS DIAMETER: 0.920 INCHES NOMINAL IN
•
BOTTOM RECESS DIAMETER: 0.940 INCHES NOMINAL IN
•
HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
•
TOP RECESS ANGLE: 92.0 DEGREES NOMINAL
•
STYLE DESIGNATOR: RECESSED BOTH SIDES
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.530 INCHES MINIMUM AND 1.550 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.108 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
TOP RECESS DIAMETER0.920 INCHES NOMINAL IN
BOTTOM RECESS DIAMETER0.940 INCHES NOMINAL IN
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
TOP RECESS ANGLE92.0 DEGREES NOMINAL
STYLE DESIGNATORRECESSED BOTH SIDES
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.530 INCHES MINIMUM AND 1.550 INCHES MAXIMUM IN
MATERIAL THICKNESS0.108 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
BOTTOM RECESS ANGLE88.0 DEGREES NOMINAL
MATERIALSTEEL COMP 8740 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 1
QAP-00436Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 139205?
139205 is a WASHER,RECESSED.
What parts can replace 139205?
There is 1 known substitute for 139205: QAP-00436. Substitute compatibility should be verified for your specific system.
What is the NSN for 139205?
139205 is cataloged in the U.S. Government catalog under NSN 5310-00-048-8836. 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.