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ES2631-06 — NUT ASSEMBLY,RETAINER PLATE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

ES2631-06: NUT ASSEMBLY,RETAINER PLATE.

The NUT ASSEMBLY,RETAINER PLATE is a the manufacturer industrial component. Key specifications include width: 1.240 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN, length: 1.246 INCHES MINIMUM AND 1.266 INCHES MAXIMUM IN, thickness: 0.032 INCHES NOMINAL IN, mounting_style: PLATE, inside_diameter: 0.969 INCHES MINIMUM AND 0.984 INCHES MAXIMUM IN, center_to_center_nut_spacing: 0.966 INCHES MINIMUM AND 0.972 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-074-4986, 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
ES2631-06
NSN: 5310-01-074-4986
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
width1.240 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
length1.246 INCHES MINIMUM AND 1.266 INCHES MAXIMUM IN
thickness0.032 INCHES NOMINAL IN
mounting_stylePLATE
inside_diameter0.969 INCHES MINIMUM AND 0.984 INCHES MAXIMUM IN
center_to_center_nut_spacing0.966 INCHES MINIMUM AND 0.972 INCHES MAXIMUM IN
mating_member_diameter_accommodated0.969 INCHES MINIMUM AND 0.984 INCHES MAXIMUM IN
center_to_center_nut_spacing_along_length0.966 INCHES MINIMUM AND 0.972 INCHES MAXIMUM IN
NSN5310-01-074-4986
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: ES2631-06 · 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
•
CENTER TO CENTER NUT SPACING ALONG LENGTH: 0.966 INCHES MINIMUM AND 0.972 INCHES MAXIMUM IN
•
LENGTH: 1.246 INCHES MINIMUM AND 1.266 INCHES MAXIMUM IN
•
CENTER TO CENTER NUT SPACING: 0.966 INCHES MINIMUM AND 0.972 INCHES MAXIMUM IN
•
MOUNTING STYLE: PLATE
•
INSIDE DIAMETER: 0.969 INCHES MINIMUM AND 0.984 INCHES MAXIMUM IN
•
MATING MEMBER DIAMETER ACCOMMODATED: 0.969 INCHES MINIMUM AND 0.984 INCHES MAXIMUM IN
•
WIDTH: 1.240 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
•
THICKNESS: 0.032 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CENTER TO CENTER NUT SPACING ALONG LENGTH0.966 INCHES MINIMUM AND 0.972 INCHES MAXIMUM IN
LENGTH1.246 INCHES MINIMUM AND 1.266 INCHES MAXIMUM IN
CENTER TO CENTER NUT SPACING0.966 INCHES MINIMUM AND 0.972 INCHES MAXIMUM IN
MOUNTING STYLEPLATE
INSIDE DIAMETER0.969 INCHES MINIMUM AND 0.984 INCHES MAXIMUM IN
MATING MEMBER DIAMETER ACCOMMODATED0.969 INCHES MINIMUM AND 0.984 INCHES MAXIMUM IN
WIDTH1.240 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
THICKNESS0.032 INCHES NOMINAL 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 1
12265528-5Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 ES2631-06?
ES2631-06 is a NUT ASSEMBLY,RETAINER PLATE.
What parts can replace ES2631-06?
There is 1 known substitute for ES2631-06: 12265528-5. Substitute compatibility should be verified for your specific system.
What is the NSN for ES2631-06?
ES2631-06 is cataloged in the U.S. Government catalog under NSN 5310-01-074-4986. 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.