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9P0220 — NUT,PLAIN,EXTENDED WASHER,HEXAGO

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

9P0220: NUT,PLAIN,EXTENDED WASHER,HEXAGO.

NUT,PLAIN,EXTENDED WASHER,HEXAGO. Key specifications include material: STEEL COMP 420 OVERALL, nut_style: HEXAGON, thread_class: 3B, thread_series: UNF, overall_height: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN, special_features: 1 HOLE 0.042 IN. DIA THRU EACH WRENCHING FLAT IN.

This part is cataloged in the U.S. Government catalog under NSN 5310-00-357-1675, 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
9P0220
NSN: 5310-00-357-1675
FSC: 5310 — Nuts and Washers
CAGE: 05722 — S & L AEROSPACE METALS LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 420 OVERALL
nut_styleHEXAGON
thread_class3B
thread_seriesUNF
overall_height0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
special_features1 HOLE 0.042 IN. DIA THRU EACH WRENCHING FLAT IN
thread_directionRIGHT-HAND
washer_thickness0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
surface_treatmentNICKEL OVERALL
width_across_flats0.312 INCHES NOMINAL IN
nominal_thread_size0.190 INCHES IN
washer_outside_diameter0.375 INCHES NOMINAL IN
NSN5310-00-357-1675
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 9P0220 · 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
•
WASHER OUTSIDE DIAMETER: 0.375 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 0.312 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-26074 GRADE B MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNF
•
WASHER THICKNESS: 0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER0.375 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.312 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-26074 GRADE B MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNF
WASHER THICKNESS0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.190 INCHES IN
SPECIAL FEATURES1 HOLE 0.042 IN. DIA THRU EACH WRENCHING FLAT 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
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 9P0220?
9P0220 is a NUT,PLAIN,EXTENDED WASHER,HEXAGO.
What is the NSN for 9P0220?
9P0220 is cataloged in the U.S. Government catalog under NSN 5310-00-357-1675. 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.