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31810-1 — WASHER,FLAT

✓ Government record, cited
Peach · NUT WASHER
PRODUCT OVERVIEW

31810-1: WASHER,FLAT.

Peach is a leading Swiss brand and supplier of 100%-compatible replacement ink cartridges. Leading-edge technology ensures optimal quality for outstanding results. Colour durability and fade-resistance satisfy the most stringent requirements to guarantee brilliant printouts.

To ensure Premium Quality, we develop our inks at our own development centre in Switzerland, after which they are injected into the cartridges at our production site. The latest advances in research and technology flow into our manufacturing and production methods. A quality level that the Asian manufacturers fail to equal, available at very attractive prices.

A genuine alternative to expensive OEM products and low-budget inks. This part is cataloged in the U.S. Government catalog under NSN 5310-01-488-9397, indicating validated use in U.S.

government and defense logistics supply chains.

WHERE IT FITS
31810-1
NSN: 5310-01-488-9397
FSC: 5310 — Nuts and Washers
CAGE: 89357 — EVOQUA WATER TECHNOLOGIES LLC (USA)
SPECIFICATIONS
Part Number31810-1
ManufacturerPeach
NSN5310-01-488-9397
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 31810-1 · Peach ⚠ 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
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
W2T90482Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 31810-1?
31810-1 is a WASHER,FLAT manufactured by Peach.
What parts can replace 31810-1?
There is 1 known substitute for 31810-1: W2T90482. Substitute compatibility should be verified for your specific system.
What is the NSN for 31810-1?
31810-1 is cataloged in the U.S. Government catalog under NSN 5310-01-488-9397. 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.