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BA721505 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

BA721505: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2017 OVERALL, nut_style: ROUND, nut_diameter: 1.873 INCHES MINIMUM AND 1.874 INCHES MAXIMUM IN, thread_class: 2B, nut_thickness: 1.251 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN, thread_series: UN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-760-2030, 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
BA721505
NSN: 5310-00-760-2030
FSC: 5310 — Nuts and Washers
CAGE: 64959 — AMERICAN TELEPHONE AND TELEGRAPH CO (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2017 OVERALL
nut_styleROUND
nut_diameter1.873 INCHES MINIMUM AND 1.874 INCHES MAXIMUM IN
thread_class2B
nut_thickness1.251 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN
thread_seriesUN
thread_directionRIGHT-HAND
countersink_angle90.0 DEGREES NOMINAL NUT
surface_treatmentANODIZE OVERALL
width_across_flats1.734 INCHES MINIMUM AND 1.766 INCHES MAXIMUM IN
nominal_thread_size1.562 INCHES IN
thread_quantity_per_inch16
NSN5310-00-760-2030
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BA721505 · 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: 1.734 INCHES MINIMUM AND 1.766 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/5 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.562 INCHES IN
•
NUT DIAMETER: 1.873 INCHES MINIMUM AND 1.874 INCHES MAXIMUM IN
•
NUT THICKNESS: 1.251 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.734 INCHES MINIMUM AND 1.766 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/5 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.562 INCHES IN
NUT DIAMETER1.873 INCHES MINIMUM AND 1.874 INCHES MAXIMUM IN
NUT THICKNESS1.251 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN
SURFACE TREATMENTANODIZE OVERALL
COUNTERSINK ANGLE90.0 DEGREES NOMINAL NUT
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 BA721505?
BA721505 is a NUT,PLAIN,ROUND.
What is the NSN for BA721505?
BA721505 is cataloged in the U.S. Government catalog under NSN 5310-00-760-2030. 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.