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Technical Data Sheet
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18229 — PACKING NUT

✓ Government record, cited
Trefl · BOLT SCREW
PRODUCT OVERVIEW

18229: PACKING NUT.

Surge guard power outlet with 5 protected connections for powering your devices. Guards TV, stereo and other expensive equipment against damage from power surges and spikes. 10.000 Euro warranty on connected equipment (check conditions on internet).

Also suitable for HiFi, DVD, microwave, telephone and other sensitive home devices. Automatic circuit breaker prevents device overload. Including child safety shutters.

This part is cataloged in the U.S. Government catalog under NSN 5305-00-957-5031, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
18229
NSN: 5305-00-957-5031
NIINs: 009575031, 011709473, 016994723
FSC: 5305 — Screws
CAGE: 73734 — FEDERAL SCREW PRODUCTS, INC. (USA)
SPECIFICATIONS
end_item_identificationCYLINDRICAL SHAPE,PACKING NUT
part_name_assigned_by_controlling_agencyGLAND,SEAL,INBOARD,SPRING LOCK
NSN5305-00-957-5031
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 18229 · Trefl ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
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SCREW SURFACE TREATMENT: CADMIUM AND CHROMATE
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FASTENER LENGTH: 0.875 INCHES NOMINAL IN
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SCREW MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OR ASTMA108 ASSN STD SINGLE MATERIAL RESPONSE
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THREAD LENGTH: 0.825 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
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NOMINAL THREAD DIAMETER: 0.112 INCHES IN
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HEAD STYLE: FLAT COUNTERSUNK
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THREAD DIRECTION: RIGHT-HAND
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NONDEFINITIVE SPEC/STD DATA: 3 TYPE AND 2C STYLE
TECHNICAL CHARACTERISTICS
SCREW SURFACE TREATMENTCADMIUM AND CHROMATE
FASTENER LENGTH0.875 INCHES NOMINAL IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OR ASTMA108 ASSN STD SINGLE MATERIAL RESPONSE
THREAD LENGTH0.825 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.112 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
NONDEFINITIVE SPEC/STD DATA3 TYPE AND 2C STYLE
SCREW MATERIALSTEEL
MINIMUM TENSILE STRENGTH60000 POUNDS PER SQUARE INCH LBS
SUBSTITUTES & CROSS-REFERENCES 3
FF-S-92Reference document
Same NSN cross-reference
Reference document — Identification reference
MS35190-228Reference document
Same NSN cross-reference
Reference document — Secondary reference
18229ADXReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 18229?
18229 is a PACKING NUT manufactured by Trefl.
What parts can replace 18229?
There are 3 known substitutes for 18229: FF-S-92, MS35190-228, 18229ADX. Substitute compatibility should be verified for your specific system.
What is the NSN for 18229?
18229 is cataloged in the U.S. Government catalog under NSN 5305-00-957-5031. This indicates validated use in U.S. government and defense supply chains.
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