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20N01-20DG — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

20N01-20DG: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, nut_style: HEXAGON, nut_height: 0.310 INCHES NOMINAL IN, thread_class: 2B, thread_series: UN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-623-5997, 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
20N01-20DG
NSN: 5310-01-623-5997
FSC: 5310 — Nuts and Washers
CAGE: 24984 — HYDRAFLOW (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
nut_styleHEXAGON
nut_height0.310 INCHES NOMINAL IN
thread_class2B
thread_seriesUN
thread_directionRIGHT-HAND
surface_treatmentANODIZE OVERALL
width_across_flats2.250 INCHES NOMINAL IN
nominal_thread_size1.875 INCHES IN
bearing_surface_typeFLAT
end_item_identificationFUEL FEED SYSTEM
thread_quantity_per_inch16
NSN5310-01-623-5997
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 20N01-20DG · 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
•
WIDTH ACROSS FLATS: 2.250 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625, TYPE II MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ/A-225/8 ASSN STD 1ST MATERIAL RESPONSE OR QQ/A-200/8 ASSN STD 1ST MATERIAL RESPONSE OR WW/T-700/6 ASSN STD 1ST MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.875 INCHES IN
•
NUT HEIGHT: 0.310 INCHES NOMINAL IN
•
SURFACE TREATMENT: ANODIZE OVERALL
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS2.250 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625, TYPE II MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ/A-225/8 ASSN STD 1ST MATERIAL RESPONSE OR QQ/A-200/8 ASSN STD 1ST MATERIAL RESPONSE OR WW/T-700/6 ASSN STD 1ST MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.875 INCHES IN
NUT HEIGHT0.310 INCHES NOMINAL IN
SURFACE TREATMENTANODIZE OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYBHD NUT
NUT STYLEHEXAGON
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 2
T2236-125BMReference document
Same NSN cross-reference
Reference document — Design control — primary reference
261-7444566-F36Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 20N01-20DG?
20N01-20DG is a NUT,PLAIN,HEXAGON.
What parts can replace 20N01-20DG?
There are 2 known substitutes for 20N01-20DG: T2236-125BM, 261-7444566-F36. Substitute compatibility should be verified for your specific system.
What is the NSN for 20N01-20DG?
20N01-20DG is cataloged in the U.S. Government catalog under NSN 5310-01-623-5997. 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.