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116B487H01 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

116B487H01: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include length: 1.060 INCHES NOMINAL IN, material: STEEL COMP 303 OVERALL, thickness: 0.180 INCHES NOMINAL IN, hole_diameter: 0.404 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN, special_features: RADIUS 0.380 IN. ON ONE EDGE OF ONE BEARING SURFACE IN, width_across_flats: 1.000 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 5310-00-620-4012, 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
116B487H01
NSN: 5310-00-620-4012
FSC: 5310 — Nuts and Washers
CAGE: 48306 — NORTHROP GRUMMAN SUPPORT SERVICES CORP (USA)
SPECIFICATIONS
length1.060 INCHES NOMINAL IN
materialSTEEL COMP 303 OVERALL
thickness0.180 INCHES NOMINAL IN
hole_diameter0.404 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN
special_featuresRADIUS 0.380 IN. ON ONE EDGE OF ONE BEARING SURFACE IN
width_across_flats1.000 INCHES NOMINAL IN
peripheral_shape_styleRECTANGULAR
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-620-4012
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 116B487H01 · 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
•
WIDTH ACROSS FLATS: 1.000 INCHES NOMINAL IN
•
LENGTH: 1.060 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: RECTANGULAR
•
MATERIAL: STEEL COMP 303 OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.000 INCHES NOMINAL IN
LENGTH1.060 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SPECIAL FEATURESRADIUS 0.380 IN. ON ONE EDGE OF ONE BEARING SURFACE IN
PERIPHERAL SHAPE STYLERECTANGULAR
MATERIALSTEEL COMP 303 OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.404 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN
THICKNESS0.180 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
C5078106-1Reference 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 116B487H01?
116B487H01 is a WASHER,FLAT.
What parts can replace 116B487H01?
There is 1 known substitute for 116B487H01: C5078106-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 116B487H01?
116B487H01 is cataloged in the U.S. Government catalog under NSN 5310-00-620-4012. 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.