Part Number
Sleeve Spacer · NAS (National Aerospace Standard) · NSN 5365-00-810-0253
| Part number | NAS42HT4-32 |
|---|---|
| Specification family | NAS (National Aerospace Standard) |
| Item name | Sleeve Spacer |
| Unit of issue | EA |
| Cross-referenced NSN | 5365-00-810-0253 |
| Federal Supply Class (FSC) | 5365 — Rings, Shims, and Spacers |
| Unit price (USD) | $8.76 |
| Country of origin | Türkiye (Turkey) |
| Lead time | Within 90 days of order |
| Minimum order | May apply — confirm on quote |
| Documentation | Source documentation provided on all orders |
Characteristics decoded from the federal cataloging record for this sleeve spacer. Confirm controlling dimensions against your drawing or standard sheet before ordering.
| Material | Steel Overall |
|---|---|
| Overall Length | 0.4950 Inches Minimum And 0.5050 Inches Maximum |
| Surface Treatment | Cadmium Overall |
Retaining rings, snap rings, shims, spacers, and bushings used to locate, retain, and adjust the position of components on shafts and in bores.
Reading the part number. NAS42HT4-32 breaks down as NAS42 — the National Aerospace Standard that fixes the part's design — plus the dash/suffix code HT4-32, which selects the exact size, material, or finish variant from the tables on that standard. Two parts sharing the NAS42 base are the same design in different variants.
Price in context. Across the 167 items we currently stock in FSC 5365 (Rings, Shims, and Spacers), published unit prices run from $0.27 to $3,300.00. At $8.76, this item sits well below the class median of $29.79 — commodity hardware usually bought in volume.
Who orders NAS42HT4-32. Aircraft owners and MRO shops replacing standard hardware, machine shops and OEMs filling a bill of materials, and government contractors sourcing against NSN 5365-00-810-0253. You can order by part number or by stock number — it is the same item, the same published price, and the same quote form.
Applicable standards. ANSI B27.7 retaining rings, MS/NAS shims and spacers.
Need this part modified, or a similar part made to your print? See our U.S.-based CNC machining services and aerospace machining capability.
Country of origin: Türkiye (Turkey) — a DFARS qualifying country. Türkiye is a NATO ally with a reciprocal defense procurement agreement with the U.S. Department of Defense, making it a qualifying country under DFARS 225.003. On DoD and DLA solicitations, qualifying-country end products are evaluated without Buy American price penalties — they compete on par with domestic product — and DoD trade-agreements clauses (DFARS 252.225-7021) expressly accept qualifying-country end products.
Dollar thresholds. The Trade Agreements Act only applies to supply contracts at or above $174,000 (the WTO GPA threshold effective March 2026); below that — where the vast majority of hardware buys fall — the TAA does not apply at all. The main exclusion is civilian-agency solicitations at or above that threshold that restrict award to TAA designated-country products (Türkiye is not TAA-designated). Buyers are responsible for confirming the origin requirements of their specific solicitation.
Full country-of-origin and source documentation is provided with every order. Fulfillment within 90 days of order. Minimum order may apply.
Items are supplied as stock mil-spec / commercial hardware with source documentation and country-of-origin paperwork on every order. Parts are not supplied with an FAA Form 8130-3 airworthiness tag unless expressly stated on the quote. Buyers installing hardware on certificated aircraft are responsible for acceptance under their own maintenance program, repair station procedures, or owner/operator authority.
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