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PartsTable / COMPONENT / ES-303
ES-303 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The WRENCH SET,OPEN END,FIXED is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_length: 3.440 INCHES MAXIMUM IN, special_features: FORGED STEEL, style_designator: DOUBLE HEAD, surface_treatment: CHROMIUM OVERALL, large_end_head_angle: 15.0 DEGREES NOMINAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-00-277-8309, 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
ES-303
NSN: 5120-00-277-8309
FSC: 5120
CAGE: 06949 — EMPORIUM SPECIALTIES CO INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_length3.440 INCHES MAXIMUM IN
special_featuresFORGED STEEL
style_designatorDOUBLE HEAD
surface_treatmentCHROMIUM OVERALL
large_end_head_angle15.0 DEGREES NOMINAL
small_end_head_angle60.0 DEGREES NOMINAL
wrenching_surface_size0.250 INCHES NOMINAL SECOND END IN
wrenching_surface_shapeOVAL BOTH ENDS INTERNAL
large_end_head_thickness0.109 INCHES MAXIMUM IN
small_end_head_thickness0.109 INCHES MAXIMUM IN
nondefinitive_spec/std_data2 TYPE AND 2 CLASS
NSN5120-00-277-8309
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available WRENCH SET,OPEN END,FIXED TITLE COMPONENT PN ES-303 MFR WRENCH SET,OPEN END,FI
KEY FEATURES
•
WRENCHING SURFACE SIZE: 0.219 INCHES NOMINAL FIRST END IN
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 2 CLASS
•
WRENCHING SURFACE SHAPE: OVAL BOTH ENDS INTERNAL
•
STYLE DESIGNATOR: DOUBLE HEAD
•
SPECIFICATION/STANDARD DATA: 05047-ASME B107.100 CAT 39 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
MATERIAL: STEEL OVERALL
•
SMALL END HEAD THICKNESS: 0.109 INCHES MAXIMUM IN
•
LARGE END HEAD THICKNESS: 0.109 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
WRENCHING SURFACE SIZE0.219 INCHES NOMINAL FIRST END IN
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 2 CLASS
WRENCHING SURFACE SHAPEOVAL BOTH ENDS INTERNAL
STYLE DESIGNATORDOUBLE HEAD
SPECIFICATION/STANDARD DATA05047-ASME B107.100 CAT 39 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
MATERIALSTEEL OVERALL
SMALL END HEAD THICKNESS0.109 INCHES MAXIMUM IN
LARGE END HEAD THICKNESS0.109 INCHES MAXIMUM IN
OVERALL LENGTH3.440 INCHES MAXIMUM IN
SURFACE TREATMENTCHROMIUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
WC65Interchangeable
interchangeable cross-reference
interchangeable
GGG-W-636Interchangeable
interchangeable cross-reference
interchangeable
GGG-W-636 TY6Interchangeable
interchangeable cross-reference
interchangeable
618Interchangeable
interchangeable cross-reference
interchangeable
46272AInterchangeable
interchangeable cross-reference
interchangeable
32364Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ES-303?
ES-303 is a WRENCH SET,OPEN END,FIXED.
What parts can replace ES-303?
There are 19 known substitutes for ES-303: WC65, GGG-W-636, GGG-W-636 TY6 and 16 more. Substitute compatibility should be verified for your specific system.
Is ES-303 still available?
ES-303 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026