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ERE229 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

ERE229: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 230 OVERALL, recess_angle: 45.0 DEGREES NOMINAL, hole_diameter: 1.070 INCHES MINIMUM AND 1.080 INCHES MAXIMUM IN, recess_diameter: 1.187 INCHES NOMINAL IN, outside_diameter: 1.240 INCHES MINIMUM AND 1.245 INCHES MAXIMUM IN, style_designator: RECESSED. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-073-3048, 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
ERE229
NSN: 5310-00-073-3048
FSC: 5310 — Nuts and Washers
CAGE: 81336 — CHIEF OF ENGINEERS DEPT OF ARMY (USA)
SPECIFICATIONS
materialCOPPER ALLOY 230 OVERALL
recess_angle45.0 DEGREES NOMINAL
hole_diameter1.070 INCHES MINIMUM AND 1.080 INCHES MAXIMUM IN
recess_diameter1.187 INCHES NOMINAL IN
outside_diameter1.240 INCHES MINIMUM AND 1.245 INCHES MAXIMUM IN
style_designatorRECESSED
material_thickness0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
NSN5310-00-073-3048
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: ERE229 · 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
•
OUTSIDE DIAMETER: 1.240 INCHES MINIMUM AND 1.245 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
•
RECESS DIAMETER: 1.187 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY 230 OVERALL
•
HOLE DIAMETER: 1.070 INCHES MINIMUM AND 1.080 INCHES MAXIMUM IN
•
RECESS ANGLE: 45.0 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORRECESSED
OUTSIDE DIAMETER1.240 INCHES MINIMUM AND 1.245 INCHES MAXIMUM IN
MATERIAL THICKNESS0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
RECESS DIAMETER1.187 INCHES NOMINAL IN
MATERIALCOPPER ALLOY 230 OVERALL
HOLE DIAMETER1.070 INCHES MINIMUM AND 1.080 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 1
13206E0964Same 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 ERE229?
ERE229 is a WASHER,RECESSED.
What parts can replace ERE229?
There is 1 known substitute for ERE229: 13206E0964. Substitute compatibility should be verified for your specific system.
What is the NSN for ERE229?
ERE229 is cataloged in the U.S. Government catalog under NSN 5310-00-073-3048. 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.