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Technical Data Sheet
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636123 — WASHER,LOCK

✓ Government record, cited
Legrand · NUT WASHER
PRODUCT OVERVIEW

636123: WASHER,LOCK.

Conforms to EN 50085 Parts 2 and 3, UL and CSA Material: PVC self-extinguishing or PC/ABS halogen free Colour: grey RAL 7030 (PVC) or light grey RAL 7035 (PC/ABS) PC/ABS range passes IEC 695-2-1 850°C glow wire test Operating temp.: -5 to +60°C UL classification: UL94 VO Oxygen index: 43% (PVC) or 37% (PC/ABS) EN ISO 4589 (low fume) Metric size body in 2 m lengths (6mm gap/6.5mm finger width) DIN fixing centres of 12.5/25mm Maximum space for cables with good heat dissipation Exit cables at terminal or base level This part is cataloged in the U.S. Government catalog under NSN 5310-00-261-7158, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
636123
NSN: 5310-00-261-7158
FSC: 5310 — Nuts and Washers
CAGE: 14100 — STROMBERG-CARLSON CORP A PLESSEY TELECOMMUNICATIONS CO (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
hole_diameter0.256 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
outside_diameter0.396 INCHES MINIMUM AND 0.408 INCHES MAXIMUM IN
style_designatorFLAT INTERNAL TEETH
material_thickness0.018 INCHES NOMINAL IN
NSN5310-00-261-7158
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 636123 · Legrand ⚠ 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: FLAT INTERNAL TEETH
•
OUTSIDE DIAMETER: 0.396 INCHES MINIMUM AND 0.408 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.018 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY OVERALL
•
HOLE DIAMETER: 0.256 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORFLAT INTERNAL TEETH
OUTSIDE DIAMETER0.396 INCHES MINIMUM AND 0.408 INCHES MAXIMUM IN
MATERIAL THICKNESS0.018 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
HOLE DIAMETER0.256 INCHES MINIMUM AND 0.267 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
1920-02-00Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 636123?
636123 is a WASHER,LOCK manufactured by Legrand.
What parts can replace 636123?
There is 1 known substitute for 636123: 1920-02-00. Substitute compatibility should be verified for your specific system.
What is the NSN for 636123?
636123 is cataloged in the U.S. Government catalog under NSN 5310-00-261-7158. This indicates validated use in U.S. government and defense supply chains.
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