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612A225P1 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

612A225P1: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 321 OVERALL, recess_angle: 45.0 DEGREES NOMINAL, hole_diameter: 0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, recess_diameter: 0.275 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN, outside_diameter: 0.460 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN, style_designator: RECESSED. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-596-4648, 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
612A225P1
NSN: 5310-00-596-4648
FSC: 5310 — Nuts and Washers
CAGE: 07482 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP 321 OVERALL
recess_angle45.0 DEGREES NOMINAL
hole_diameter0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
recess_diameter0.275 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
outside_diameter0.460 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN
style_designatorRECESSED
material_thickness0.028 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN
material_document_and_classificationAMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-596-4648
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 612A225P1 · 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: AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.460 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.028 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN
•
RECESS DIAMETER: 0.275 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 321 OVERALL
•
HOLE DIAMETER: 0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
•
RECESS ANGLE: 45.0 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORRECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.460 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN
MATERIAL THICKNESS0.028 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN
RECESS DIAMETER0.275 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
MATERIALSTEEL COMP 321 OVERALL
HOLE DIAMETER0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
RECESS ANGLE45.0 DEGREES NOMINAL
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 2
SRS612A225Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5310PL0785154Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 612A225P1?
612A225P1 is a WASHER,RECESSED.
What parts can replace 612A225P1?
There are 2 known substitutes for 612A225P1: SRS612A225, 5310PL0785154. Substitute compatibility should be verified for your specific system.
What is the NSN for 612A225P1?
612A225P1 is cataloged in the U.S. Government catalog under NSN 5310-00-596-4648. 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.