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A57-3 — Technical Data Sheet

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— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include material: STEEL COMP E52100 OVERALL, end_style: SPRING END,SQUARED AND GROUND SECOND END, bore_shape: STRAIGHT, body_length: 4.150 INCHES NOMINAL IN, flange_width: 0.0630 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM IN, body_material: METAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5310-00-382-8594, 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
MRO→ MRO_GENERAL→ A57-3
NSN: 5310-00-382-8594
FSC: 5310
CAGE: 55719 — IDSC HOLDINGS LLC DIV SNAP-ON INDUSTRIAL, A DIV. OF IDSC HOLDINGS , LLC (USA)
SPECIFICATIONS
materialSTEEL COMP E52100 OVERALL
end_styleSPRING END,SQUARED AND GROUND SECOND END
bore_shapeSTRAIGHT
body_length4.150 INCHES NOMINAL IN
flange_width0.0630 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM IN
body_materialMETAL
bore_diameter0.2498 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
coil_quantity14-1/2
overall_width0.1950 INCHES MINIMUM AND 0.1960 INCHES MAXIMUM IN
inclosure_typeHERMETICALLY SEALED
load_directionRADIAL
overall_length5.730 INCHES NOMINAL IN
NSN5310-00-382-8594
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A57-3 · 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
•
TEST DATA DOCUMENT: 55719-A57-3 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
TECHNICAL CHARACTERISTICS
TEST DATA DOCUMENT55719-A57-3 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
1228997-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
771017-4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
771017PC4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
FA3101InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
SP-200InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
66A73D51InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A57-3?
A57-3 is a FILTER,RADIO FREQUENCY INTERFERE. It is classified as a MRO (MRO_GENERAL).
What parts can replace A57-3?
There are 8 known substitutes for A57-3: 1228997-1, 771017-4, 771017PC4 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A57-3?
A57-3 is cataloged in the Federal Logistics Information System under NSN 5310-00-382-8594. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026