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LD153-0027-1012 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

LD153-0027-1012: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, recess_angle: 90.0 DEGREES NOMINAL, hole_diameter: 0.752 INCHES MINIMUM AND 0.756 INCHES MAXIMUM IN, hardness_rating: 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM, recess_diameter: 0.918 INCHES MINIMUM AND 0.928 INCHES MAXIMUM IN, outside_diameter: 1.230 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-167-0257, 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
LD153-0027-1012
NSN: 5310-01-167-0257
FSC: 5310 — Nuts and Washers
CAGE: 43999 — THE BOEING COMPANY DIV LEGACY AM&M (USA)
SPECIFICATIONS
materialSTEEL COMP XM-13 OVERALL
recess_angle90.0 DEGREES NOMINAL
hole_diameter0.752 INCHES MINIMUM AND 0.756 INCHES MAXIMUM IN
hardness_rating40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
recess_diameter0.918 INCHES MINIMUM AND 0.928 INCHES MAXIMUM IN
outside_diameter1.230 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
special_featuresDEEP LOOK PROJECT--LANDING GEAR
style_designatorRECESSED
surface_treatmentPASSIVATE OVERALL
material_thickness0.054 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
criticality_code_justificationFEAT
material_document_and_classificationAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-167-0257
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: LD153-0027-1012 · 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: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
STYLE DESIGNATOR: RECESSED
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.230 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.054 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
•
RECESS DIAMETER: 0.918 INCHES MINIMUM AND 0.928 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
CRITICALITY CODE JUSTIFICATIONFEAT
STYLE DESIGNATORRECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.230 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
MATERIAL THICKNESS0.054 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
RECESS DIAMETER0.918 INCHES MINIMUM AND 0.928 INCHES MAXIMUM IN
SPECIAL FEATURESDEEP LOOK PROJECT--LANDING GEAR
SURFACE TREATMENTPASSIVATE 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
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FREQUENTLY ASKED QUESTIONS
What is LD153-0027-1012?
LD153-0027-1012 is a WASHER,RECESSED.
What is the NSN for LD153-0027-1012?
LD153-0027-1012 is cataloged in the U.S. Government catalog under NSN 5310-01-167-0257. 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.