The Dispenser,flux, cataloged under National Stock Number 3439-01-353-9949, is classified within Federal Supply Class 3439 (Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories) of the Metalworking Machinery (continued) group. The manufacturer of record is Intervala Llc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3439-01-353-9949 |
| Primary Part Number | LD-223 |
| Item Name | Dispenser,flux |
| FSC / FSG | 3439 / 34 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories |
| Manufacturer | Intervala Llc |
| Status | ACTIVE |
| General Characteristics Item Description | POLYETHYLENE SQUEEZE BOTTLE; 1 IN. LONG STAINLESS STEEL HYPODERMIC NEEDLE; O/A HEIGHT TO TIP END IS 5 IN.; NEEDLE ID IS .022 IN. IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| LD-223 | Intervala Llc (USA) |
| Reference | Meaning |
|---|---|
| FD-2 | 3/9 Design control — primary reference Techni-Tool, Inc. |
| LD223 | 5/9 Secondary reference Apt Inc P O Box 537 Candia Nh 03034-0537 |
NSN 3439-01-353-9949 is a Dispenser,flux, manufactured by Intervala Llc, classified under FSC 3439, Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories. Status: active.
NSN 3439-01-353-9949 has 1 manufacturer part number on file: LD-223 (Intervala Llc).
2 possible matches (shared part number, not a government interchangeability claim): 4210-01-354-3366, 8125-01-693-3673. Verify interchangeability with system specifications before substitution.
Key specifications for LD-223: General Characteristics Item Description: POLYETHYLENE SQUEEZE BOTTLE; 1 IN. LONG STAINLESS STEEL HYPODERMIC NEEDLE; O/A HEIGHT TO TIP END IS 5 IN.; NEEDLE ID IS .022 IN. IN; Special Features: DISPENSES ONE DROP LIQUID RESIN,FLUX,OIL OR SOLVENT; SELF-STANDING; NO SPILL BOTTLE; HOLDS 2 OUNCES; SCREW TOP HOLDS NEEDLE; PERFECT FOR SOLDER/DESOLDER WORK OZ. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.