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291 — CONNECTOR,RECEPTACLE,ELECTRICAL

✓ Government record, cited
Hama · NUT WASHER
PRODUCT OVERVIEW

291: CONNECTOR,RECEPTACLE,ELECTRICAL.

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include flange: NOT PROVIDED, locknut: INCLUDED, end_type: EXTERNAL THREAD SECOND END, material: PLASTIC BODY, duty_type: CONTINUOUS, pail_hook: NOT PROVIDED. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-027-2058, 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
291
NSN: 5310-00-027-2058
NIINs: 000272058, 001095370, 001492726, 001866597, 001885699, 001939502, 002230395, 003247781, 003455732, 004825785, 005069092, 005773695, 007412238, 007680743, 008000374, 008174880, 008612575, 009743994, 010324506, 010455007, 010657089, 010951139, 011345532, 012799490, 012969591, 013989527, 014122693, 015083261, 016921340
FSC: 5310 — Nuts and Washers
CAGE: 87801 — WILMINGTON FIBRE SPECIALTY CO (USA)
SPECIFICATIONS
flangeNOT PROVIDED
locknutINCLUDED
end_typeEXTERNAL THREAD SECOND END
materialPLASTIC BODY
duty_typeCONTINUOUS
pail_hookNOT PROVIDED
base_styleMINIATURE BAYONET
body_styleTOP OR BOTTOM MOUNT W/MOLDED SADDLE
bulb_styleT (TUBULAR)
gear_ratio4 TO 1
body_length2.438 INCHES NOMINAL IN
handle_typeSQUEEZE GRIP
NSN5310-00-027-2058
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 291 · Hama ⚠ 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
•
SHOULDER HEIGHT: 0.026 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SHOULDERED
•
OUTSIDE DIAMETER: 0.470 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.066 INCHES NOMINAL IN
•
SHOULDER DIAMETER: 0.288 INCHES NOMINAL IN
•
MATERIAL: FIBERBOARD OVERALL
•
HOLE DIAMETER: 0.188 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SHOULDER HEIGHT0.026 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDERED
OUTSIDE DIAMETER0.470 INCHES NOMINAL IN
MATERIAL THICKNESS0.066 INCHES NOMINAL IN
SHOULDER DIAMETER0.288 INCHES NOMINAL IN
MATERIALFIBERBOARD OVERALL
HOLE DIAMETER0.188 INCHES NOMINAL IN
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 1
414748-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 291?
291 is a CONNECTOR,RECEPTACLE,ELECTRICAL manufactured by Hama.
What parts can replace 291?
There is 1 known substitute for 291: 414748-4. Substitute compatibility should be verified for your specific system.
What is the NSN for 291?
291 is cataloged in the U.S. Government catalog under NSN 5310-00-027-2058. 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.