Part Number
Groove Pulley · MS (Military Standard) · NSN 3020-00-277-1119
| Part number | MS20219-4 |
|---|---|
| Specification family | MS (Military Standard) |
| Item name | Groove Pulley |
| Alternate references | MIL-DTL-7034/1; NAS376-4; AN219-4; SMS20219-4 |
| Unit of issue | EA |
| Cross-referenced NSN | 3020-00-277-1119 |
| Federal Supply Class (FSC) | 3020 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Unit price (USD) | $30.00 |
| 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 groove pulley. Confirm controlling dimensions against your drawing or standard sheet before ordering.
| Outside Diameter | 2.620 Inches Minimum And 2.630 Inches Maximum |
|---|---|
| Overall Length | 0.436 Inches Minimum And 0.443 Inches Maximum |
Rotary power-transmission elements including spur and bevel gears, pulleys, sheaves, sprockets, and roller chain.
A single-groove grooved pulley made of phenolic plastic with a U-shaped profile and an integral ball bearing.
Reading the part number. MS20219-4 breaks down as MS20219 — the Military Standard sheet that fixes the part's design — plus the dash/suffix code 4, which selects the exact size, material, or finish variant from the tables on that standard. Two parts sharing the MS20219 base are the same design in different variants.
Price in context. Across the 4 items we currently stock in FSC 3020 (Gears, Pulleys, Sprockets, and Transmission Chain), published unit prices run from $28.04 to $525.69. At $30.00, this item sits well below the class median of $85.09 — commodity hardware usually bought in volume.
Stock activity. This item has appeared 2 times in our supplier stock feed, most recently listed 2026-08-19, with a lot quantity of 1,416 units. Listing activity is a practical signal of ongoing availability; confirm current stock and firm pricing on your quote.
Who orders MS20219-4. Aircraft owners and MRO shops replacing standard hardware, machine shops and OEMs filling a bill of materials, and government contractors sourcing against NSN 3020-00-277-1119. 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. AGMA gear standards, ANSI roller chain.
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). Turkey is a NATO ally and a normal-trade-relations partner of the United States, and Turkish-origin end items are eligible for a wide range of U.S. federal and DLA procurements.
TAA note: Turkey is not a Trade Agreements Act (TAA) designated country, so these items are generally not eligible for TAA-covered solicitations. They are offerable under the Buy American Act and many non-TAA DLA buys. 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.
NSN 3020-00-881-2064
