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JGH122 — WASHER,SHOULDERED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

JGH122: WASHER,SHOULDERED.

The WASHER,SHOULDERED is a the manufacturer industrial component. Key specifications include material: PLASTIC PHENOLIC OVERALL, hole_diameter: 0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN, shoulder_height: 0.050 INCHES NOMINAL IN, outside_diameter: 0.620 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN, style_designator: SHOULDERED, shoulder_diameter: 0.485 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-067-0381, 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
JGH122
NSN: 5310-01-067-0381
FSC: 5310 — Nuts and Washers
CAGE: 02750 — EATON AEROSPACE LLC DBA EATON INOAC DIV FLUID & ELECTRICAL DISTRIBUTION (USA)
SPECIFICATIONS
materialPLASTIC PHENOLIC OVERALL
hole_diameter0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
shoulder_height0.050 INCHES NOMINAL IN
outside_diameter0.620 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN
style_designatorSHOULDERED
shoulder_diameter0.485 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN
material_thickness0.031 INCHES NOMINAL IN
NSN5310-01-067-0381
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: JGH122 · 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
•
SHOULDER HEIGHT: 0.050 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SHOULDERED
•
OUTSIDE DIAMETER: 0.620 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.031 INCHES NOMINAL IN
•
SHOULDER DIAMETER: 0.485 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN
•
MATERIAL: PLASTIC PHENOLIC OVERALL
•
HOLE DIAMETER: 0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SHOULDER HEIGHT0.050 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDERED
OUTSIDE DIAMETER0.620 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN
MATERIAL THICKNESS0.031 INCHES NOMINAL IN
SHOULDER DIAMETER0.485 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN
MATERIALPLASTIC PHENOLIC OVERALL
HOLE DIAMETER0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM 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
2646-49550-PH385Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is JGH122?
JGH122 is a WASHER,SHOULDERED.
What parts can replace JGH122?
There is 1 known substitute for JGH122: 2646-49550-PH385. Substitute compatibility should be verified for your specific system.
What is the NSN for JGH122?
JGH122 is cataloged in the U.S. Government catalog under NSN 5310-01-067-0381. 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.