Delron Inserts D1832 Series – NAS 1832 Equivalent
Style Selection
Table 1
Size | PThread Size 9 | A Head Dia. | B Body Dia. | C | D Body Dia. | E Flat | F Flange Dia. | H Min. | J | L |
06 | .1380-32 UNJC-3B | .560 | .300 | .12 | .375 | .400 | .560 | .250 | .367 | .37 |
08 | .1640-32 UNJC-3B | .560 | .300 | .12 | .375 | .400 | .560 | .250 | .367 | .37 |
3 | .1900-32 UNJF-3B | .560 | .300 | .12 | .375 | .400 | .560 | .250 | .367 | .37 |
4 | .2500-28 UNJF-3B | .685 | .375 | .14 | .440 | .520 | .685 | .312 | .467 | .50 |
5 | .3125-24 UNJF-3B | .685 | .475 | .16 | .500 | .520 | .685 | .312 | .467 | .50 |
6 | 3750-24 UNJF-3B | .841 | .500 | .22 | .550 | .560 | .841 | .375 | .591 | .50 |
Notes:
- Burrs caused by machining of potting holes of slots permissible under
- Adhesive backed installation tab, D1837, shall be furnished with each See page 44.
- Plated or solid film lubricant is recommended on self-locking CRES
- Minimum thread “H”, where length permits, shall be 2 diameters.
<5> Self-locking, 303 CRES inserts without plating or lubricant will be tested using a silver plated bolt or
screw.
<6> Locate locking pellet no closer than 10° from edge of either potting holes or slots.
- Tolerances, unless otherwise specified: .xxx ± .010; Angles ± 2°.
Typical Assembly
Typical Series D1832 Blind Threaded Insert (NAS 1832 equivalent); installed in honeycomb sandwich panel. Insert is held
in place by a cured epoxy compound.
Note: For installation and tooling information, see pages 44 and 45.
Insert Length Determination
The length of the insert is specified by a dash number which defines .125 inch increments. Insert length must be a
minimum of .040 inch less than depth of panel core (See Fig. 1).
Example: -6 = .750 -11 = 1.375 inch
“L” Notes:
- Specified in .125 inch
- Minimum “L” values are listed in Table 1, opposite.
- Maximum bolt engagement should not exceed “L” minus .060
Part Number Selection
Consult Rosán for availability of optional materials, finishes and sizes.
Example:
Fig. 1
Minimum clearance is required between bottom of insert and inside panel skin for proper epoxy bonding around bottom of
insert.
Part Number Example:
1. Requirements:
.1900-32 Thread size, Self-Locking, Aluminum Screw Engagement of .50 inch, and an overall panel thickness of .750.
Part Number:
2.Requirements:
.1640-32 Thread size, Nonself-Locking, Carbon Steel with Solid Film Lubricant, Thread Engagement of .25 inch and an
overall panel thickness of .50 inch.
Part Number: