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4891-927649 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

4891-927649: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include end_item_identification: STEERABLE DRIVE AXLE, MODEL NO. SDA 18, part_name_assigned_by_controlling_agency: WASHER, FLAT STEEL, RD, UPPER KINGPIN.

This part is cataloged in the U.S. Government catalog under NSN 5310-01-644-6620, 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
4891-927649
NSN: 5310-01-644-6620
FSC: 5310 — Nuts and Washers
CAGE: Z4117 — VOLVO GROUP GOVERNMENT SALES OCEANI OCEANIA VOLVO GROUP GOVERNMENT SALES (AUS)
SPECIFICATIONS
end_item_identificationSTEERABLE DRIVE AXLE, MODEL NO. SDA 18
part_name_assigned_by_controlling_agencyWASHER, FLAT STEEL, RD, UPPER KINGPIN
NSN5310-01-644-6620
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 4891-927649 · 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
TECHNICAL CHARACTERISTICS
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER, FLAT STEEL, RD, UPPER KINGPIN
END ITEM IDENTIFICATIONSTEERABLE DRIVE AXLE, MODEL NO. SDA 18
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
927649Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4891-927649?
4891-927649 is a WASHER,FLAT.
What parts can replace 4891-927649?
There is 1 known substitute for 4891-927649: 927649. Substitute compatibility should be verified for your specific system.
What is the NSN for 4891-927649?
4891-927649 is cataloged in the U.S. Government catalog under NSN 5310-01-644-6620. 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.