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1674M68 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1674M68: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include length: 1.430 INCHES MINIMUM AND 1.450 INCHES MAXIMUM IN, material: NICKEL ALLOY UNS N06002 OVERALL, thickness: 0.076 INCHES MINIMUM AND 0.084 INCHES MAXIMUM IN, hole_diameter: 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN, width_across_flats: 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN, peripheral_shape_style: RECTANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-487-7451, 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
1674M68
NSN: 5310-01-487-7451
NIINs: 014877451, 014877469
FSC: 5310 — Nuts and Washers
CAGE: 07482 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
length1.430 INCHES MINIMUM AND 1.450 INCHES MAXIMUM IN
materialNICKEL ALLOY UNS N06002 OVERALL
thickness0.076 INCHES MINIMUM AND 0.084 INCHES MAXIMUM IN
hole_diameter0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
width_across_flats1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
peripheral_shape_styleRECTANGULAR
center_hole_shape_styleROUND
end_item_identificationF110GE129ENGI;ENGINE,AIRCRAFT,F110-GE-100
hole_width_across_flats0.320 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationAMS 5536 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-487-7451
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1674M68 · 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: 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
•
LENGTH: 2.110 INCHES MINIMUM AND 2.130 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5536 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: RECTANGULAR
•
MATERIAL: NICKEL ALLOY UNS N06002 OVERALL
•
HOLE WIDTH ACROSS FLATS: 0.320 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
LENGTH2.110 INCHES MINIMUM AND 2.130 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5536 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLERECTANGULAR
END ITEM IDENTIFICATIONF110GE129ENGI;ENGINE,AIRCRAFT,F110-GE-100
MATERIALNICKEL ALLOY UNS N06002 OVERALL
HOLE WIDTH ACROSS FLATS0.320 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 1674M68?
1674M68 is a WASHER,FLAT.
What is the NSN for 1674M68?
1674M68 is cataloged in the U.S. Government catalog under NSN 5310-01-487-7451. 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.