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PAFS401UASM — NUT,SELF-LOCKING,EXTENDED WASHER

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

PAFS401UASM: NUT,SELF-LOCKING,EXTENDED WASHER.

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: STEEL OVERALL, thread_series: UNFUNF, overall_height: 36.0 MILLIMETERS NOMINAL36.0 MILLIMETERS NOMINAL MM, nominal_thread_size: 0.75 INCHES0.75 INCHES IN, thread_quantity_per_inch: 1616, part_name_assigned_by_controlling_agency: SAE STRAIGHT 4 BOLT FLANGESAE STRAIGHT 4 BOLT FLANGE. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-705-5437, 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
PAFS401UASM
NSN: 5310-01-705-5437
FSC: 5310 — Nuts and Washers
CAGE: 30780 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV TUBE FITTINGS DIVISION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_seriesUNFUNF
overall_height36.0 MILLIMETERS NOMINAL36.0 MILLIMETERS NOMINAL MM
nominal_thread_size0.75 INCHES0.75 INCHES IN
thread_quantity_per_inch1616
part_name_assigned_by_controlling_agencySAE STRAIGHT 4 BOLT FLANGESAE STRAIGHT 4 BOLT FLANGE
NSN5310-01-705-5437
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: PAFS401UASM · 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
•
THREAD SERIES: UNFUNF
•
NOMINAL THREAD SIZE: 0.75 INCHES0.75 INCHES IN
•
THREAD QUANTITY PER INCH: 1616
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT36.0 MILLIMETERS NOMINAL36.0 MILLIMETERS NOMINAL MM
THREAD SERIESUNFUNF
NOMINAL THREAD SIZE0.75 INCHES0.75 INCHES IN
PART NAME ASSIGNED BY CONTROLLING AGENCYSAE STRAIGHT 4 BOLT FLANGESAE STRAIGHT 4 BOLT FLANGE
THREAD QUANTITY PER INCH1616
MATERIALSTEEL OVERALL
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 PAFS401UASM?
PAFS401UASM is a NUT,SELF-LOCKING,EXTENDED WASHER.
What is the NSN for PAFS401UASM?
PAFS401UASM is cataloged in the U.S. Government catalog under NSN 5310-01-705-5437. 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.