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170725 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

170725: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1015 OVERALL, thickness: 0.104 INCHES NOMINAL IN, hole_diameter: 0.875 INCHES NOMINAL IN, surface_finish: 63.0 MICROINCHES ALL SURFACES, hardness_rating: 56.0 ROCKWELL C MINIMUM AND 64.0 ROCKWELL C MAXIMUM, overall_diameter: 1.469 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-684-3168, 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
170725
NSN: 5310-00-684-3168
FSC: 5310 — Nuts and Washers
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
materialSTEEL COMP 1015 OVERALL
thickness0.104 INCHES NOMINAL IN
hole_diameter0.875 INCHES NOMINAL IN
surface_finish63.0 MICROINCHES ALL SURFACES
hardness_rating56.0 ROCKWELL C MINIMUM AND 64.0 ROCKWELL C MAXIMUM
overall_diameter1.469 INCHES NOMINAL IN
features_providedCASEHARDENED
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-684-3168
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 170725 · 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
•
SURFACE FINISH: 63.0 MICROINCHES ALL SURFACES
•
OVERALL DIAMETER: 1.469 INCHES NOMINAL IN
•
HARDNESS RATING: 56.0 ROCKWELL C MINIMUM AND 64.0 ROCKWELL C MAXIMUM
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
FEATURES PROVIDED: CASEHARDENED
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL COMP 1015 OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES ALL SURFACES
OVERALL DIAMETER1.469 INCHES NOMINAL IN
HARDNESS RATING56.0 ROCKWELL C MINIMUM AND 64.0 ROCKWELL C MAXIMUM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
FEATURES PROVIDEDCASEHARDENED
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL COMP 1015 OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.875 INCHES NOMINAL IN
THICKNESS0.104 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 170725?
170725 is a WASHER,FLAT.
What is the NSN for 170725?
170725 is cataloged in the U.S. Government catalog under NSN 5310-00-684-3168. 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.