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101205B — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

101205B: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, recess_depth: 0.039 INCHES NOMINAL IN, hole_diameter: 0.500 INCHES MINIMUM AND 0.501 INCHES MAXIMUM IN, overall_height: 0.175 INCHES NOMINAL IN, recess_diameter: 0.750 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN, outside_diameter: 0.978 INCHES MINIMUM AND 0.982 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-122-0486, 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
101205B
NSN: 5310-01-122-0486
FSC: 5310 — Nuts and Washers
CAGE: 830Q4 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS-WRIGHT STEAM AND AIR SOLUTIONS DIV STEAM AND AIR SOLUTIONS (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
recess_depth0.039 INCHES NOMINAL IN
hole_diameter0.500 INCHES MINIMUM AND 0.501 INCHES MAXIMUM IN
overall_height0.175 INCHES NOMINAL IN
recess_diameter0.750 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN
outside_diameter0.978 INCHES MINIMUM AND 0.982 INCHES MAXIMUM IN
style_designatorRECESSED
features_providedCASEHARDENED
material_document_and_classificationASTM A276 ASSN STD SINGLE MATERIAL RESPONSE OR EM-592 FSCM 82328 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-122-0486
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 101205B · 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: ASTM A276 ASSN STD SINGLE MATERIAL RESPONSE OR EM-592 FSCM 82328 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.978 INCHES MINIMUM AND 0.982 INCHES MAXIMUM IN
•
RECESS DEPTH: 0.039 INCHES NOMINAL IN
•
FEATURES PROVIDED: CASEHARDENED
•
RECESS DIAMETER: 0.750 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.175 INCHES NOMINAL IN
STYLE DESIGNATORRECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A276 ASSN STD SINGLE MATERIAL RESPONSE OR EM-592 FSCM 82328 MFR REF SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.978 INCHES MINIMUM AND 0.982 INCHES MAXIMUM IN
RECESS DEPTH0.039 INCHES NOMINAL IN
FEATURES PROVIDEDCASEHARDENED
RECESS DIAMETER0.750 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN
MATERIALSTEEL CORROSION RESISTING OVERALL
HOLE DIAMETER0.500 INCHES MINIMUM AND 0.501 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 101205B?
101205B is a WASHER,RECESSED.
What is the NSN for 101205B?
101205B is cataloged in the U.S. Government catalog under NSN 5310-01-122-0486. 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.