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Technical Data Sheet
PartsTable / COMPONENT / 00314-4
00314-4 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The WASHER,CONCAVE is a the manufacturer industrial component. Key specifications include radius: 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN, hole_diameter: 0.438 INCHES NOMINAL IN, surface_finish: 63.0 MICROINCHES ALL SURFACES, hardness_rating: 70.0 ROCKWELL B MINIMUM AND 86.0 ROCKWELL B MAXIMUM, recess_diameter: 0.625 INCHES NOMINAL IN, outside_diameter: 1.125 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-167-0733, 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
00314-4
NSN: 5310-00-167-0733
FSC: 5310
CAGE: 14153 — DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA (USA)
SPECIFICATIONS
radius0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
materialSTEEL OR STEEL COMP 1008 OR STEEL COMP 1009 OR STEEL COMP 1015 OR STEEL COMP 1018 OR STEEL COMP 1020 OR STEEL COMP 1025 OVERALL
hole_diameter0.438 INCHES NOMINAL IN
surface_finish63.0 MICROINCHES ALL SURFACES
hardness_rating70.0 ROCKWELL B MINIMUM AND 86.0 ROCKWELL B MAXIMUM
recess_diameter0.625 INCHES NOMINAL IN
outside_diameter1.125 INCHES NOMINAL IN
style_designatorCONCAVE
surface_treatmentCADMIUM OR ZINC OVERALL
material_thickness0.094 INCHES NOMINAL IN
material_document_and_classificationQQ-S-630 FED SPEC ALL MATERIAL RESPONSES OR QQ-S-698 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-700 FED SPEC ALL MATERIAL RESPONSES OR AISI ASSN STD ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationQQ-P-416,TY 1,CL 2 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 1,CL 2 FED SPEC 2ND TREATMENT RESPONSE OVERALL
NSN5310-00-167-0733
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 00314-4 · 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
•
HOLE DIAMETER: 0.438 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CONCAVE
•
MATERIAL: STEEL OR STEEL COMP 1008 OR STEEL COMP 1009 OR STEEL COMP 1015 OR STEEL COMP 1018 OR STEEL COMP 1020 OR STEEL COMP 1025 OVERALL
•
MATERIAL THICKNESS: 0.094 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 2 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 1,CL 2 FED SPEC 2ND TREATMENT RESPONSE OVERALL
•
RADIUS: 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
•
RECESS DIAMETER: 0.625 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.438 INCHES NOMINAL IN
STYLE DESIGNATORCONCAVE
MATERIALSTEEL OR STEEL COMP 1008 OR STEEL COMP 1009 OR STEEL COMP 1015 OR STEEL COMP 1018 OR STEEL COMP 1020 OR STEEL COMP 1025 OVERALL
MATERIAL THICKNESS0.094 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 2 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 1,CL 2 FED SPEC 2ND TREATMENT RESPONSE OVERALL
RADIUS0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
RECESS DIAMETER0.625 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
SURFACE FINISH63.0 MICROINCHES ALL SURFACES
OUTSIDE DIAMETER1.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
1206LT-1B1Interchangeable
interchangeable cross-reference
interchangeable
9506X1Interchangeable
interchangeable cross-reference
interchangeable
1206LTInterchangeable
interchangeable cross-reference
interchangeable
9506Interchangeable
interchangeable cross-reference
interchangeable
11739P1Interchangeable
interchangeable cross-reference
interchangeable
MILR24006Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 00314-4?
00314-4 is a WASHER,CONCAVE.
What parts can replace 00314-4?
There are 13 known substitutes for 00314-4: 1206LT-1B1, 9506X1, 1206LT and 10 more. Substitute compatibility should be verified for your specific system.
Is 00314-4 still available?
00314-4 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026