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551953 — BRACKET,FIRE EXTINGUISHER

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

551953: BRACKET,FIRE EXTINGUISHER.

The BRACKET,FIRE EXTINGUISHER is a the manufacturer industrial component. Key specifications include mounting_position: HORIZONTAL AND VERTICAL, extinguisher_type_for_which_designed: CARBON DIOXIDE. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-118-5052, 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
551953
NSN: 5310-00-118-5052
NIINs: 001185052, 005825504, 013913285
FSC: 5310 — Nuts and Washers
CAGE: 21119 — EVINRUDE MOTORS PRODUCT GROUP OF OUTBOARD MARINE CORP (USA)
SPECIFICATIONS
mounting_positionHORIZONTAL AND VERTICAL
extinguisher_type_for_which_designedCARBON DIOXIDE
NSN5310-00-118-5052
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 551953 · 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
•
OVERALL DIAMETER: 0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: COPPER ALLOY OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.253 INCHES MINIMUM AND 0.259 INCHES MAXIMUM IN
•
THICKNESS: 0.031 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALCOPPER ALLOY OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.253 INCHES MINIMUM AND 0.259 INCHES MAXIMUM IN
THICKNESS0.031 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 551953?
551953 is a BRACKET,FIRE EXTINGUISHER.
What is the NSN for 551953?
551953 is cataloged in the U.S. Government catalog under NSN 5310-00-118-5052. 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.